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July 29, 2015

Homework Help: physics

Posted by Kelly on Sunday, November 7, 2010 at 6:32pm.

An escalator is 15.0 m long. If a person stands on the escalator, it takes 38.0 s to ride from the bottom to the top.

(a) If a person walks up the moving escalator with a speed of 0.500 m/s relative to the escalator, how long does it take the person to get to the top?

(b) If a person walks down the "up" escalator with the same relative speed as in item (a), how long does it take to reach the bottom?

I have no idea what i am doing!

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