16. A car is moving at a speed of 72 km/hr. the diameter of its wheels is 0.5 m. If the wheels are stopped in 20 rotations by applying brakes
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(a)      – 25.5 rad/s2 (b) – 29.5 rad/s2                                                  (c)  – 33.5 rad/s2 (d) – 45.5 rad/s2 Ans. a (11)