Revenge

[Oldgreybeard]

I've wasted 5 minutes of my life watching Grumpy John's "80 mph" post (including "Deer Crossing" video) and need to get even:p:p

William and Kate (you may have heard of them) go walking hand-in-hand around their estate. The walk is 5 kilometrs in length.

Before starting they record their vital statistics:

<tbody>

William
Kate


Blood pressure
125 / 78
128 / 80


Pulse rate
65 bpm
70 bpm


Respiration rate
12
15


Height
187cm
165cm


Weight
85 Kg
70kg


Length of stride
93cm per step
82cm per step

</tbody>

The walk takes 1 hour and they then compare their vital statistics against those recorded before the walk.

William is obviously in great physical condition and there is virtually no change between his starting and ending stats. Only his Pulse rate increased noticeably from 65 to 86 bpm.

On the other hand Kate is still to regain her pre – pregnancy fitness; her stats have changed significantly:

<tbody>

Before
After


Blood pressure
128 / 80
132/ 85


Pulse rate
70 bpm
122 bpm


Respiration rate
15
19


Height
165cm
n/c


Weight
70kg
n/c


Length of stride
82cm per step
78cm per step

</tbody>

At the start of the walk Kate was taking 122 steps per 100 meters compared with Willam’s 107. During the last 100 meters, Kate took 128 steps - an increase of almost 5% in the number of steps: William took exactly the same number of steps as he took in the first 100 meters. In total, Kate took 6245 steps compared with Wiliam’s 5350; almost 17% more steps than William .

Question 1: What is William’s average walking speed?

Question 2: Is Kate’s average walking speed –
a. 17% higher than William’s?
b. 5% higher than William’s?
c. 17% lower than William’s?
d. 5% lower than William’s?
e. the same as William’s ?

This should be easy, so I reckon I am still owed at least 4 minutes:no:

Bob

[DavidG]

Too simple.

[Kuffy]

I've wasted 5 minutes of my life watching Grumpy John's "80 mph" post (including "Deer Crossing" video) and need to get even:p:p

William and Kate (you may have heard of them) go walking hand-in-hand around their estate. The walk is 5 kilometrs in length.

Before starting they record their vital statistics:

<tbody>

William
Kate


Blood pressure
125 / 78
128 / 80


Pulse rate
65 bpm
70 bpm


Respiration rate
12
15


Height
187cm
165cm


Weight
85 Kg
70kg


Length of stride
93cm per step
82cm per step

</tbody>

The walk takes 1 hour and they then compare their vital statistics against those recorded before the walk.

William is obviously in great physical condition and there is virtually no change between his starting and ending stats. Only his Pulse rate increased noticeably from 65 to 86 bpm.

On the other hand Kate is still to regain her pre – pregnancy fitness; her stats have changed significantly:

<tbody>

Before
After


Blood pressure
128 / 80
132/ 85


Pulse rate
70 bpm
122 bpm


Respiration rate
15
19


Height
165cm
n/c


Weight
70kg
n/c


Length of stride
82cm per step
78cm per step

</tbody>

At the start of the walk Kate was taking 122 steps per 100 meters compared with Willam’s 107. During the last 100 meters, Kate took 128 steps - an increase of almost 5% in the number of steps: William took exactly the same number of steps as he took in the first 100 meters. In total, Kate took 6245 steps compared with Wiliam’s 5350; almost 17% more steps than William .

Question 1: What is William’s average walking speed?

Question 2: Is Kate’s average walking speed –
a. 17% higher than William’s?
b. 5% higher than William’s?
c. 17% lower than William’s?
d. 5% lower than William’s?
e. the same as William’s ?

This should be easy, so I reckon I am still owed at least 4 minutes:no:

Bob


stop reading women's magazines!

[Oldgreybeard]

stop reading women's magazines!

Actually I first came across this some years ago in a 1st year university physics lecture (I have updated the names of the people concerned) It was used as an exercise in "seperating the oats from the chaff"- identifying relevant data and the keywords which clarify the question.
Not sure whether the responses here are a reflection of the intelligence of members of this forum or a statement as to the standard of modern education - From memory the lecturer claimed that almost 40% selected option C as the answer for the second question. He indicated that the extraneous detail was purely to create confusion between speed and energy consumed.

Bob

[Kuffy]

lol @ 40% of people selecting option C. its like asking what weighs more? a tonne of bricks or a tonne of feathers.

i still reckon this kind of article will be written in some women's magazine, because i can see it causing an argument between chicks lacking basic logic and confusing the situation using mathematics. and yes, im sure a few calculators will be brought out to "prove" the arguments :D

[Chesand]

It is an exercise in 'clear thinking' as it was called in my day.

[Oldgreybeard]

It is an exercise in 'clear thinking' as it was called in my day.

I agree.

[Chesand]

I agree.

I see that we are of similar vintage. :D

[A Duke]

In my day it was BSBB.

[Chesand]

In my day it was BSBB.

That still applies today. :D

[A Duke]

Do not Google it, Google has a dirty mind.
Work it out for your self , the first B is bull.
:wink:

[Chesand]

Do not Google it, Google has a dirty mind.
Work it out for your self , the first B is bull.
:wink:

The cleaner version is BDBB. That should give a clue.

[Grumpy John]

I need more information:
Was George with them, if so did he walk or was he carried?
Was Charlotte with them, if so what diameter are the wheels on the pram, and how many times do they turn per kilometer?

[FenceFurniture]

I need more information:
Was George with them, if so did he walk or was he carried?
Was Charlotte with them, if so what diameter are the wheels on the pram, and how many times do they turn per kilometer?Give 'im some false clues OGB - he owes 5 minutes to half the forum :D.

[DaveTTC]

E

Dave TTC
Turning Wood Into Art

[Bob38S]

Which is heavier, a pound of feathers or a pound of gold?

A. The same.

B. The feathers.

C. The gold.

[yvan]

Wot is the age of the captain?http://d1r5wj36adg1sk.cloudfront.net/images/smilies/standard/biggrin.gif

[Oldgreybeard]

Give 'im some false clues OGB - he owes 5 minutes to half the forum :D.

Yes John has totally missed the point. I explained the relationship between speed = distance/time and the walking speed defined as
(steps per100m per second)/time. I think John has become obsessed with the Royal Family and completely ignored the fact that to correctly answer the test he must demonstrate correlation between the changes in physiology data (pulse rate,etc) to speed and walking speed definitions above, and the impact of these changes to Kate's assertion that she has to walk 17% faster than William just to keep up.:?

Perhaps he could also explain how to add closed loop PMW control with PID logic to ensure that Kate maintans a constant speed.:rolleyes:

In respect to John's request for additional information, I suggest that to determine the RPM of the pram wheels, he needs to consider the relevant force able to be projected on to the handle of the pram by the Queen when she pushed Charles 65 years ago as compared to the force which Kate is able to impart on the handle to push Charlotte today. Of course he will need to account for the increased resistance in the wheel bearings due to age and probable lack of maintenance, the effect of climate change which may have dried out the ground thus reducing friction between the wheels and the ground and number of seconds bewteen the current time and the time in Ireland on the 1st January 2016 at 1.01 pm. To this I would suggect that he use a constant of intergation of 0.001^2 for each double scotch he has consummed in the past 24 hours.:oo:

How many minutes can we claim now?:D

Bob

[Oldgreybeard]

Which is heavier, a pound of feathers or a pound of gold?

A. The same.

B. The feathers.

C. The gold.

Weight or currency?

[Grumpy John]

Yes John has totally missed the point. I explained the relationship between speed = distance/time and the walking speed defined as
(steps per100m per second)/time. I think John has become obsessed with the Royal Family and completely ignored the fact that to correctly answer the test he must demonstrate correlation between the changes in physiology data (pulse rate,etc) to speed and walking speed definitions above, and the impact of these changes to Kate's assertion that she has to walk 17% faster than William just to keep up.:?

Perhaps he could also explain how to add closed loop PMW control with PID logic to ensure that Kate maintans a constant speed.:rolleyes:

In respect to John's request for additional information, I suggest that to determine the RPM of the pram wheels, he needs to consider the relevant force able to be projected on to the handle of the pram by the Queen when she pushed Charles 65 years ago as compared to the force which Kate is able to impart on the handle to push Charlotte today. Of course he will need to account for the increased resistance in the wheel bearings due to age and probable lack of maintenance, the effect of climate change which may have dried out the ground thus reducing friction between the wheels and the ground and number of seconds bewteen the current time and the time in Ireland on the 1st January 2016 at 1.01 pm. To this I would suggect that he use a constant of intergation of 0.001^2 for each double scotch he has consummed in the past 24 hours.:oo:

How many minutes can we claim now?:D

Bob

Best fit one of these (http://www.exatek.com.au/index.php?main_page=product_info&cPath=2&products_id=5) to monitor tyre pressures so as to assure accurate results.

[Oldgreybeard]

E

Dave TTC
Turning Wood Into Art

Dave you are the only one to offer an opinion as to the correct answer.:2tsup:

Should we tell him whether he is correct or wait for grumpy John's dissertation on the correlation of the physiology data to the speed and walking speed definitions?:D

[Grumpy John]

I didn't think the point of this thread was to supply the correct answer, but to confuse the issue with as much irrelevant data as possible.

BTW, I would have answered E also.

[Grumpy John]

Wot is the age of the captain?http://d1r5wj36adg1sk.cloudfront.net/images/smilies/standard/biggrin.gif

43, prove me wrong :D.




https://en.wikipedia.org/wiki/Age_of_the_captain

[FenceFurniture]

I didn't think the point of this thread was to supply the correct answer, but to confuse the issue with as much irrelevant data as possible. :no:

To confuse you as much as possible. :;

[Chesand]

Dave you are the only one to offer an opinion as to the correct answer.:2tsup:

Should we tell him whether he is correct or wait for grumpy John's dissertation on the correlation of the physiology data to the speed and walking speed definitions?:D

I would tell Dave that he is correct but not let Grumpy see our answer. :D

[DaveTTC]

I just figured they were hand in hand then after reading the rest of the thread thought whoops. I spoilt the moment lol

Dave TTC
Turning Wood Into Art

[Chesand]

I just figured they were hand in hand then after reading the rest of the thread thought whoops. I spoilt the moment lol

Dave TTC
Turning Wood Into Art


We will let you off this time, but don't do it again. :D:D

[Bob38S]

Which is heavier, a pound of feathers or a pound of gold?

A. The same.

B. The feathers.

C. The gold.




Weight or currency?

Weight.

[Oldgreybeard]

Which is heavier, a pound of feathers or a pound of gold?

A. The same.

B. The feathers.

C. The gold.





Weight.

No don't wieght - the price of gold is falling:p

[Grumpy John]

:no:

To confuse you as much as possible. :;

Huh???????

353677

[Oldgreybeard]

43, prove me wrong :D.
https://en.wikipedia.org/wiki/Age_of_the_captain

The answer is definitely 58

You left out the "O":doh:

W = 23
O = 15
T = 20

WOT = 23 + 15 + 20 = 58 NOT 23 + 20 = 43:D

[Oldgreybeard]

Originally Posted by DaveTTC http://d1r5wj36adg1sk.cloudfront.net/images/buttons/viewpost-right.png (http://www.woodworkforums.com/showthread.php?p=1883787#post1883787) I just figured they were hand in hand then after reading the rest of the thread thought whoops. I spoilt the moment lol

Dave TTC
Turning Wood Into Art


We will let you off this time, but don't do it again. :D:D

I think Dave should have to explain to Kate why she is not walking faster than Will. After all she is taking more steps, her legs are moving faster - Right.
So isn't that the same as saying that if I turned a bowl in 1 hour when the motor was running at 1000RMP and then I change the motor speed to 1500 RPM and turned another bowl in 1 hour, then we would agree that the speed of production is the same, but the motor is running faster.
Why can't Kate be walking faster?:?

[DavidG]

The weight- Is it troy, US or EU standard?

[Oldgreybeard]

The weight- Is it troy, US or EU standard?

Gee, didn't know Troy had any gold - last time I saw him he borrowed $50 to keep him afloat until pension day:D

[Bob38S]

The weight- Is it troy, US or EU standard?

Troy

[Tonyz]

Did they 'step into the bushes' for a rest :B:oo: on the way, that would change the heart rate

geez if I was with her it would. :-

[Grumpy John]

Gee, didn't know Troy had any gold - last time I saw him he borrowed $50 to keep him afloat until pension day:D

Troy doesn't have any gold....................... Greece is broke, isn't it?

[A Duke]

Wot is the age of the captain?http://d1r5wj36adg1sk.cloudfront.net/images/smilies/standard/biggrin.gifAs old as his eyes and a little older than his teeth.

[Grumpy John]

Okay, everyone has been paid back with interest, I've wasted way more than 5 minutes on this thread :D:D:D.

[Oldgreybeard]

Did they 'step into the bushes' for a rest :B:oo: on the way, that would change the heart rate

geez if I was with her it would. :-

Probably cause heavy breathing and change the respiration rate also.:o

This is going to cause major mathmatical problems. The speed doesn't change, but what happens to the walking speed ? Surely the number of steps would be the same, but the actual time walking must decrease which would change the walking speed.http://d1r5wj36adg1sk.cloudfront.net/images/smilies/rolleye.gif

Maybe we need to change the formula so that the "time" factor in the formula includes the actual walking time plus 'bonking" time and any other extraneous interruptions.:;


Perhaps we could claim some time from Grumpy John and ask him to adjudicate as to the circumstances under which "bonking" time should be included in the calculation of Speed and / or Walking speed:D:D

[Oldgreybeard]

Okay, everyone has been paid back with interest, I've wasted way more than 5 minutes on this thread :D:D:D.

OK let's call the ledger balanced.

[FenceFurniture]

OK let's call the ledger balanced.Oy! Speak fer yerself! At least this post will get me another 15 seconds from Gruñón Juan. Reckon I've only got a couple of minutes to go now.

[Grumpy John]

Oy! Speak fer yerself! At least this post will get me another 15 seconds from Gruñón Juan. Reckon I've only got a couple of minutes to go now.

I reckon I'm at least 60 minutes in credit with you Brett for putting you on to the Robin Trower video. :p

[DaveTTC]

Who's Robin Trower

Dave TTC
Turning Wood Into Art

[Grumpy John]

Who's Robin Trower

Dave TTC
Turning Wood Into Art

http://www.woodworkforums.com/showthread.php?t=196117

[Oldgreybeard]

Oy! Speak fer yerself! At least this post will get me another 15 seconds from Gruñón Juan. Reckon I've only got a couple of minutes to go now.


:sorry2: I just had to do it !!!! I was getting very concerned for Grumpy's well-being and became quite upset:C:C

I have read his earlier post again .... and again .... and again ....


http://d1r5wj36adg1sk.cloudfront.net/images/icons/icon1.png
I need more information:
Was George with them, if so did he walk or was he carried?
Was Charlotte with them, if so what diameter are the wheels on the pram, and how many times do they turn per kilometer?

http://d1r5wj36adg1sk.cloudfront.net/clear.gif (http://www.woodworkforums.com/newreply.php?do=newreply&p=1883656)
and I just cannot start to understand the torment and demons he was dealing with ....

What was causing him to image that George Mavridis would be walking around the estate with Kate & Will AND that Kate would be carrying him.???

I mean ----well ---- Kate's not a very big girl
:D:D:D

[Sawdust Maker]

Did they stop to:
1-take any photos,
2-smell the roses
3-pick flowers
4-whatever

[Chesand]

Did they stop to:
1-take any photos,
2-smell the roses
3-pick flowers
4-whatever

You are just trying to complicate things when it was just about sorted. :D:D

[node105]

I need more information:
Was George with them, if so did he walk or was he carried?
Was Charlotte with them, if so what diameter are the wheels on the pram, and how many times do they turn per kilometer?

And where's Wally?

[Bob38S]

No one has mentioned the security detail - police, MI5/6, military, security sniffing dogs, overhead choppers - did the downdraft have an effect?

You need to look at all of the variables.

[rwbuild]

and was Kate really trying to keep up with William or were the Corgi's nipping at her heels

[ian]

Which is heavier, a pound of feathers or a pound of gold?

A. The same.

B. The feathers.

C. The gold.

lifting a pound of gold is not as easy as lifting a pound of feathers
and lifting a kilogram of gold is much harder than lifting a kg of feathers


I'll explain why tomorrow

[ian]

I didn't think the point of this thread was to supply the correct answer, but to confuse the issue with as much irrelevant data as possible.

BTW, I would have answered E also.but your problem is missing a vital piece of data

the couple walked ROUND the estate holding hands
which implies walking side-by-side around a perimeter so one party will have walked a measurable distance further than the other

so answer (e) can only be approximately right.

[Chesand]

but your problem is missing a vital piece of data

the couple walked ROUND the estate holding hands
which implies walking side-by-side around a perimeter so one party will have walked a measurable distance further than the other

so answer (e) can only be approximately right.

That is the same as saying that if you wish to drive around Australia, you should go anti-clockwise as it will be slightly shorter.

[A Duke]

lifting a pound of gold is not as easy as lifting a pound of feathers
and lifting a kilogram of gold is much harder than lifting a kg of feathers


I'll explain why tomorrowYou will get a longer sentence for lifting gold than for lifting feathers.
:wink:

[Sawdust Maker]

were we told what the prevailing weather conditions were :rain2:

[ian]

which is heavier, a pound of feathers or a pound of gold?

A. The same.

B. The feathers.


c. The gold.

lifting a pound of gold is not as easy as lifting a pound of feathers
and lifting a kilogram of gold is much harder than lifting a kg of feathers


i'll explain why tomorrow


you will get a longer sentence for lifting gold than for lifting feathers.
:wink:

it's all in the mind ...

a kilogram of feathers will be a package around the size of a two or three pillows.
you expect a package that size to weigh some kilos, so when lifting it you exert enough oomph to lift 5 or more kgs

the density of gold is 19.30 g/cm3 so, a kilogram of gold occupies a volume of approximately 52cm3 -- imagine a box 25 x 25 x 83 mm -- unless you know for sure that the box is solid gold, your mind expects that a box that size will weight less than 100 g so your body only exerts enough oomph to lift 100g.
example: if you cut a 250g pack of butter into quarters lengthways, each quarter will weigh around 65g but the dimensions of each quarter will be greater than those of our (we wish !) 1kg gold bar.

[Bob38S]

To answer the original question, the key is post #35.

Which is heavier, a pound of feathers or a pound of gold?

A. The same.

B. The feathers.

C. The gold.


Answer is B



Gold, precious metals etc are traditionally weighed in Troy measure which has 12 ounces to the pound. Feathers would be avoirdupois and 16 ounces to the pound.

[BobL]

. . .Not sure whether the responses here are a reflection of the intelligence of members of this forum or a statement as to the standard of modern education -

It's neither. Educationally speaking the question posed by the OP is a joke. For a start there is far too much to read for a multiple choice test. It's been well established that multiple choice questions should also not include too many elements that create confusion - the question should be clear and obvious. It's WAY too easy to create these sorts of supposedly "tricky" questions and I have written many myself. They have very poor discrimination between the students that can achieve the subject objectives and those that don't, and do little except stress students. I've seen too many smart teachers (including myself when I first started) doing this to try usually to assert their so called intellectual superiority over students. There is no need to create such a long winded question to test if students can separate valid from invalid information. As a Uni head of department I often asked lecturers to remove questions like this every time I saw them on draft exam papers.

The ultimate question for the lecturer was did he/she actually teach students how to separate valid from invalid physical information in the first place or did he/she just think they did? During my stint over 10 years as a university course accreditor this was one of the many things that came out. Too many lecturers not clearly even stating subject objectives, not teaching the objectives that were listed in their subject outlines (just teaching their pet stuff) and then even assessing something completely outside the subject objectives. The students should not have to guess "what is in the lecturers head".

[rwbuild]

....bump....