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tha-wanderer

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A 3.0kg mass moving at 4.0ms at 135degress collides with a 4.0kg mass moving at 2.0ms at 315 degrees. The collision occurs over 0.20s and the 3.0kg mass is measured to be moving off at 1.0ms at 135 degrees. Find:

a) the final velocity of the 4.0kg mass

b) the acceleration of the 3.0kg mass

c) The force acting on each mass.

Thanks a lot people!