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April 19, 2014

Homework Help: Physics

Posted by Kali on Sunday, October 7, 2012 at 11:30pm.

Consider the figure below. (Let w1 = 150 N and w2 = 38.0 N.)

(a) What is the minimum force of friction required to hold the system of the figure in equilibrium?
N

(b) What coefficient of static friction between the 150-N block and the table ensures equilibrium?


(c) If the coefficient of kinetic friction between the 150-N block and the table is 0.127, what hanging weight should replace the 38.0-N weight to allow the system to move at a constant speed once it is set in motion?
N

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