Friday
April 18, 2014

Homework Help: math

Posted by Hei on Wednesday, August 28, 2013 at 10:15pm.

A block of mass
M1 = 2.7 kg
rests on top of a second block of mass
M2 = 4.7 kg,
and the second block sits on a surface that is so slippery that the friction can be assumed to be zero (see the figure below).

(a) If the coefficient of static friction between the blocks is
¦ĚS = 0.21,
how much force can be applied to the top block without the blocks slipping apart?

Incorrect: Your answer is incorrect.
N

(b) How much force can be applied to the bottom block for the same result?

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