A circular solid disc of uniform thickness 20 mm, radius 200 mm and mass 20 kg,

Question

A circular solid disc of uniform thickness 20 mm, radius 200 mm and mass 20 kg, is used as a
flywheel. If it rotates at 600 rpm, the kinetic energy of the flywheel, in Joules is

Options:

A . 395

B . 790

C . 1580

D . 3160

Answer: Option B

-NA-

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