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The solid ball of mass m is dropped with a velocity v, onto the edge of the rough step. If it rebounds horizontally off the

The solid ball of mass m is dropped with a velocity v, onto the edge of the rough step. If it rebounds horizontally off the step with a velocity v2, determine the angle 0 at which contact occurs. Assume no slipping when the ball strikes the step.The coefficient of restitution is e.

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