A wheel of radius R is rolling without slipping.The velocity of the point on the rim that is in contact with the surface,relative to the surface,is
A)equal to R$\omega$ in the direction of motion of the center of mass.
B)equal to R$\omega$ opposite the direction of motion of the center of mass.
C)zero.
D)equal to the velocity of the center of mass and in the same direction.
E)equal to the velocity of the center of mass but in the opposite direction.

Question

Quizplus · Accepted Answer

When a wheel is rolling without slipping, the point on the rim that is in contact with the surface has zero velocity relative to the surface. This is because, at the point of contact, the wheel is not sliding over the surface; instead, it is momentarily at rest relative to the surface as it rolls.

A Wheel of Radius R Is Rolling Without Slipping ω\omegaω In the Direction of Motion of the Center of Mass

A Wheel of Radius R Is Rolling Without Slipping $\omega$ In the Direction of Motion of the Center of Mass