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Topic: escalator steps (Read 545 times) |
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Noke Lieu
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pen... paper... let's go! (and bit of plastic)
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escalator steps
« on: Nov 1st, 2009, 5:32pm » |
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If I walk up the up-escalator taking one step per
second, I make 20 steps before arriving at the top. If I take two steps per second, I take 32 steps before reaching the top. How long would it
take to get to the top standing still?
(borrowed from http://www.basicskillsbulletin.co.uk/Portals/1/Samples/NBSampleIssue.pdf )
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a shade of wit and the art of farce.
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kg
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Re: escalator steps
« Reply #1 on: Nov 1st, 2009, 10:00pm » |
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time taken 20 secs and 16 secs for each case
if speed of elevator is v
20v + 20 = 16v+32
v=3 steps/sec
so length total steps is 80
time taken if standing still 80/3
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anuragvickey
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Re: escalator steps
« Reply #2 on: Nov 2nd, 2009, 11:30pm » |
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3
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