A sphere cannot roll on a smooth inclined surface. The motion of a rigid body which is pivoted or fixed in some way is rotation.

A sphere cannot roll on a smooth inclined surface. The motion of a ri

1.	A sphere cannot roll on a smooth inclined surface. The motion of a rigid body which is pivoted or fixed in some way is rotation.
Answer» If both assertion and reason are true and reason is the correct explanation of assertion. If both assertion and reason are true but reason is not the correct explanation of assertion If assertion is true but reason is false. If both assertion and reason are false. Solution :A sphere cannot ROLL on a smooth inclined plane, because force of FRICTION is zero for smooth surface and in CASE of sphere friction the torque for ROLLING.