98.
A body of moment of inertia of 3kg-m2 rotating with an angular speed of 2 rad/sec has the same kinetic energy as a mass of 12 kg moving with a speed of
(a) 1 m/s
(b) 2 m/s
(c) 4 m/s
(d) 8 m/s
Ans. a
(9)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (123)