Friday
April 18, 2014

Homework Help: Physics

Posted by Aaron on Thursday, March 21, 2013 at 5:44pm.

A dock worker loading crates on a ship
finds that a 18 kg crate, initially at rest on a horizontal surface, requires a 71 N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 46 N is required to keep it moving with a constant speed. The acceleration of gravity is 9.8 m/s
2.
Find the coefficient of static friction between crate and floor.

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