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May 29, 2015

Homework Help: physics

Posted by Anonymous on Thursday, October 28, 2010 at 2:48pm.

A ball whose mass is 0.3 kg hits the floor with a speed of 7 m/s and rebounds upward with a speed of 5 m/s. If the ball was in contact with the floor for 0.5 ms (0.5multiply10-3 s), what was the average magnitude of the force exerted on the ball by the floor?

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