A ball is rolled upward along an inclined plane. After reaching a certain height from the ground, it rolls down along the plane. During the motion of the ball along the inclined plane, the force of friction

First facilitates and then opposes the motion

A ball is rolled upward along an inclined plane. After reaching a cert

1.	A ball is rolled upward along an inclined plane. After reaching a certain height from the ground, it rolls down along the plane. During the motion of the ball along the inclined plane, the force of friction
A.	Always opposes the motion
B.	Always facilitates the motion
C.	Both the above
D.	First facilitates and then opposes the motion
Answer» B. Always facilitates the motion

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A ball is rolled upward along an inclined plane. After reaching a certain height from the ground, it rolls down along the plane. During the motion of the ball along the inclined plane, the force of friction

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