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Post by goodlookingone on Nov 29, 2018 13:23:49 GMT
MM.You walk upwards on an escalator, with a speed of 1 step per second. After 50 steps, you are at the end. You turn around and run downwards with a speed of 5 steps per second. After 125 steps, you are back at the beginning of the escalator.How many steps do you need if the escalator stands still? On the upward Journey you take: 50 steps, plus Auto travel ... On the Downward Journey You take: 5x125 Steps minus Auto travel :
Effectively i.e., 750 effective steps
Thus the return journey to get back to the start is: 50 steps, minus 750 steps Effectively, 700 steps for the return journey, OR 350 stairs for the single walk on a fixed stair
So its 350!
BUT.. It assumes you walk as t the same walking/running speed up, as well as down Which is a bit unlikely and unspecified.
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Post by goodlookingone on Nov 29, 2018 13:27:10 GMT
Anyone got an aspirin?
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Post by goodlookingone on Nov 29, 2018 13:39:19 GMT
On second Thoughts .....
There are still too many unknowns ... Does the five steps/second or five steps a second refer to Human steps covering five escalator steps per human step, and does I step per second mean that He is taking one escalator step, or two or three steps at a time.. Needs more Clarity. Define "Step"
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Post by goodlookingone on Nov 29, 2018 13:40:41 GMT
MATRONNN, Pills please.
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Post by Deleted on Nov 29, 2018 14:17:13 GMT
Well I'm not running down an escalator, for anybody - probably get my nice fur coat caught in it for a start.
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Post by Deleted on Nov 29, 2018 14:22:08 GMT
Check your PMS/messages, GLO.
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Post by goodlookingone on Nov 29, 2018 19:52:02 GMT
What PMS/messages - there ain't any.
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Post by Deleted on Nov 30, 2018 6:15:36 GMT
OO.
A train leaves Paris and travels at an average speed of 100 km/h, towards Rome.
Exactly two hours later, a train leaves Rome and travels towards Paris at an average speed of 150 km/h.
There are approx. 1,400 kms between Paris and Rome.
When the trains meet, which train is the closest to Rome?
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Post by goodlookingone on Nov 30, 2018 10:53:20 GMT
See Messages.
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Post by Deleted on Dec 2, 2018 19:05:24 GMT
OO.
Make a sentence consisting of three words that have the whole alphabet.
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Post by goodlookingone on Dec 2, 2018 22:15:37 GMT
Aee to Zed
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Post by Deleted on Dec 3, 2018 8:04:26 GMT
No. Try again.
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Post by Deleted on Dec 3, 2018 10:14:31 GMT
OO.
The rarer the coin, the more it's worth.
Why are 1999 2p coins worth more than 1982 2p coins?
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Post by goodlookingone on Dec 3, 2018 11:15:35 GMT
Change of Material, I think it was more iron and very slight magnetic response.
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Post by Deleted on Dec 3, 2018 11:45:09 GMT
Change of Material, I think it was more iron and very slight magnetic response. No. They started using plated steel for the 'copper' coins in 1992. But that's not the answer. |
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