A circular solid disc of uniform thickness 20 mm, radius 200 mm and ma – McqOptions

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1.	A circular solid disc of uniform thickness 20 mm, radius 200 mm and mass 20 kg, is used as flywheel. If it rotates at 600 rpm, the kinetic energy of the flywheel, in joules is
A.	395
B.	790
C.	1580
D.	3160
Answer» C. 1580

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