A ball is released from rest on a no-slip surface, as shown in the figure. After

Question

A ball is released from rest on a no-slip surface, as shown in the figure. After reaching its lowest point, the ball begins to rise again, this time on a frictionless surface as shown in the figure. When the ball reaches its maximum height on the frictionless surface, it is at a greater height as when it was released. at the same height as when it was released. at a lesser height as when it was released. It is impossible to tell without knowing the mass of the ball. It is impossible to tell without knowing the radius of the ball.

Explanation / Answer

Easily the energy must high in the frictionless part, so the potentiall energy must be lesser. So the answer is that the ball reach a lesser height when it was released

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