A wheel is rolling (without slipping) on the ground. Its axle travels at 30 m/s with respect to the ground. The tangential speed of a point on the rim with respect to the axle is
A) 15 m/s.
B) 30 m/s.
C) 45 m/s.
D) 60 m/s.
E) 90 m/s.

Question

Quizplus · Accepted Answer

The tangential speed of a point on the rim with respect to the axle is equal to the speed of the axle with respect to the ground, which is 30 m/s, because the wheel is rolling without slipping.

A Wheel Is Rolling (Without Slipping) on the Ground