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April 21, 2014

Homework Help: Physics

Posted by Elisabeth on Friday, September 9, 2011 at 7:01pm.

A 44.0 kg man stands on a bathroom scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.90 m/s in 1.19 s. It travels with this constant speed in the upward direction for the next 7.60 s. The elevator then slows down (undergoes a uniform acceleration in the negative y direction) for 2.15 s and comes to rest. What does the bathroom scale register before the elevator starts to move? Answer in units of N. (Hint: What is the velocity of the elevator then?)

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