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Two crates, of mass m1 = 70 kg and m2 = 123 kg , are in contact and at rest on a horizontal surface. Force F = 610 N is exerted on the 70-kg crate. The coefficient of kinetic friction is 0.18.
A ) determine the acceleration?
B ) determine the magnitude of the force that each create exerts on the other ?
C ) if the crates are reversed, determine the acceleration?
D ) if the crates are reversed , determine the magnitude of the force that each crate exerts on the other .