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43. A body of moment of inertia

A body of moment of inertia of 3 kg-m2 rotating with an angular velocity of 2 rad/sec has the same kinetic energy as a mass of 12 kg moving with a velocity of

(a)   8 m/s

(b)  0.5 m/s                         

(c)   2 m/s

(d)  1 m/s

Ans. d

(7)

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