February 25, 2017

Homework Help: Physics

Posted by phillip on Saturday, October 16, 2010 at 1:51pm.

The escalator that leads down into a subway station has a length of 28.5 m and a speed of 1.6 m/s relative to the ground. A student is coming out of the station by running in the wrong direction on this escalator. The local record time for this trick is 11 s. Relative to the escalator, what speed must the student exceed in order to beat this record?

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