Question

A sphere of radius R is in contact with a wedge. The point of contact is R/5 from the ground as shown in the figure. Wedge is moving with velocity 20 m/s, then the velocity of the sphere at this instant will be:

(A) 20 m/s (B) 15 m/s (C) 5 m/s (D) 10 m/s 

Answer 1

Correct option (B) 15 m/s

Explanation:

20 Sin 37 = V cos 37 

V = 20 tan 37 

V = 20 × 3/4

V = 15 m/s