Question

A wheel is rolling on a plane road. The linear velocity of centre of mass is v. Then velocities of the points A & B on circumference of wheel relative to road will be

(a)  v_A = v, v_B = 0

(b)  v_A = v_B = 0

(c)  v_A = 0, v_B = v

(d)  v_A = 0, v_B = 2v

Answer 1

Correct option  (d) vA = 0, vB = 2v

Explanation:

Point A is at rest w.r.t. motion hence v at A = 0. At point B there are two horizontal velocities. Hence v_B = 2V