Posted by **DJS** on Monday, September 20, 2010 at 10:17pm.

Two crates, of mass m1 = 80 kg and m2 = 115 kg, are in contact and at rest on a horizontal surface. A 620 N force is exerted on the 80 kg crate. The coefficient of kinetic friction is 0.15.(a) Calculate the acceleration of the system.(b) Calculate the force that each crate exerts on the other.(c) Repeat with the crates reversed. How would I set this problem up?

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