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May 27, 2015

Homework Help: phyzzzics

Posted by johnica! on Sunday, December 6, 2009 at 2:37pm.

I NEED ANSWERS AND HOW YOU GOT IT~!!

3. If you use a horizontal force of 30.0 N to slide a 12.0-kg wooden crate across a floor at a constant velocity, what is the coefficient of kinetic friction between the crate and the floor?

4. A force of 4.0N is large enough to overcome the friction between a 5.0-kg block and a horizontal surface and accelerate the block at 6.0m/s2

A. How large is the friction force?

B. What is the coefficient of friction?

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