A wheel is rotating at 900 r.p.m. about its axis. When power is cut *** it comes to rest in 1 minute. The angular retardation in rad/*^2 is

Question

A wheel is rotating at 900 r.p.m. about its axis. When power is cut *** it comes to rest in 1 minute. The angular retardation in rad/s2 is

(a) π/2

(b) π/4

(c) π/6

(d) π/8

Answer 1

Correct option: (a) π/2

Explanation:

Angular retardation,