February 27, 2017

Homework Help: Physics 2

Posted by ShaD on Friday, February 19, 2010 at 12:21am.

the escalator that leads down into a subway station has a length of 30.0m and a speed of 1.8 m/s relative to the ground. student is coming out of subway by running up the wrong direction on escalator. local record time for this is 11s. relative to escalator, what speed must the student exceed in order to beat the record?

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