A thin metal disc of radius of 0.25 m and mass 2 kg starts from rest and rolls down on an inclined plane. If its rotational kinetic energy is 4 J at the foot of inclined plane, then the linear velocity at the same point, is in . |
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a) |
2 |
b) |
c) |
d) |

A thin metal disc of radius of 0.25 m and mass 2 kg starts from rest and rolls down on an inclined plane. If its rotational kinetic energy is 4 J at the foot of inclined plane, then the linear velocity at the same point, is in . |
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a) |
2 |
b) |
c) |
d) |

1 Answer

127 votes

Rotational kinetic energy Rotational KE (where ) |

127 votes

127