# phy

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Two crates, of mass m1 = 60 kg and m2 = 130 kg, are in contact and at rest on a horizontal surface (Fig. 4-54). A 620 N force is exerted on the 60 kg crate. The coefficient of kinetic friction is 0.15.

• phy -

There is no question here. Just a bunch of numbers.

• phy -

(a) Calculate the acceleration of the system.
(b) Calculate the force that each crate exerts on the other
(c) Repeat with the crates reversed. fIND ACCELERATION AND CRATE FORCE.

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