Q.

A torque of 2 N-m produces an angular acceleration of 2 rad/sec2 in a body. If its radius of gyration is 2m, its mass will be :

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a

2 kg

b

4 kg

c

12kg

d

14kg

answer is D.

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Detailed Solution

τ=Iα=MK2α  ⇒M=τK2α=222⋅2=14kg
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