February 23, 2017

Homework Help: physics

Posted by Anonymous on Sunday, October 14, 2007 at 10:45am.

A dockworker loading crates on a ship finds that a 20 kg crate, initially at rest on horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 60 N is required to keep it moving with a constant speed. Find the coeffiecints of static and kinetic friction between crate and floor.

75N=(20kg)a a=3.75m/s^2
60N=(20kg)a a=3m/s^2

I am not sure if I am starting it correctly. How would I solve this problem?

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