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
A) at a greater height than when it was released.
B) at a lesser height than when it was released.
C) at the same height as when it was released.
D) It is impossible to tell without knowing the mass of the ball.
E) It is impossible to tell without knowing the radius of the ball.
Answer: B
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