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A disc of moment of inertia 9.8/(pi^2)kg...

A disc of moment of inertia` 9.8/(pi^2)kgm^2` is rotating at 600 r.p.m. If the frequency of rotation changes from 600 r.p.m. to 300 r.p.m., then what is the work done?
A. 1470J
B. 1452J
C. 1567J
D. 1632J

A

1470 J

B

1452 J

C

1567 J

D

1632 J

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