A car is moving at a speed of 72 km/hr. The diameter of its wheel is 0.5 m. If the wheels are stopped in 20 rotations applying brakes, then angular retardation produced by the brakes would be
(A) - 45.5 rad/s2
(B) -33.5 rad/s2
(C) -25.48 rad/s2
(D) - 50.9 rad/s2
