Question

A body of moment of inertia 3 kg m² rotating with an angular velocity 2 rad/s has the same K.E. as a mass of 12

kg moving with a velocity of- a)1m/s, b) 2m/s, c) 4m/s, d) 8m/s.​

Answer 1

Answer:

The velocity is given as,

2

1

Iω

2

=

2

1

mv

2

2

1

×3(2)

2

=

2

1

×12×v

2

v=1m/s

Thus, the speed of the body is 1m/s.

Explanation:

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Answer 2

Answer:

A body of moment of inertia 3 kg m² rotating with an angular velocity 2 rad/s has the same K.E. as a mass of 12

kg moving with a velocity of- a)1m/s, b) 2m/s, c) 4m/s, d) 8m/s.