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A hollow sphere of diameter 0.2 m and m...

A hollow sphere of diameter `0.2` m and mass 2 kg is rolling on an inclined plane with velocity `v = 0.5` m / s. The kinetic energy of the sphere is

A

0.1J

B

0.3J

C

0.5J

D

0.42J

Text Solution

Verified by Experts

The correct Answer is:
D
`K_(N)= (1)/(2) mv^(2) (1+ (K^(2))/(R^(2))) = (1)/(2) xx 2 xx (0.5)^(2) (1+ ((2)/(3)R^(2))/(R^(2)))`= 0.42J
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