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March 27, 2015

Homework Help: Physics

Posted by Z on Friday, October 24, 2008 at 7:25am.

Two people are standing on a 2.2-m-long platform, one at each end. The platform floats parallel to the ground on a cushion of air, like a hovercraft. One person throws a 6.1-kg ball to the other, who catches it. The ball travels nearly horizontally. Excluding the ball, the total mass of the platform and people is 124 kg. Because of the throw, this 124-kg mass recoils. How far does it move before coming to rest again?

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