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Moment of Inertia of a Disc

The ration of...

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The ration of rotational to kinetic energy for a hollow sphere in pure rolling motio

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Q. In the case of different rolling bodies match the ratio of rotational kinetic energy to the total kinetic energy

List - I	List - II
a) hollow sphere	e) $2 : 5$
b) solid cylinder	f) $1 : 2$
c) solid sphere	g) $1 : 3$
d) hollow cylinder	h) $2 : 7$

Q. Find ratio of rotational and translation kinetic energy of a rolling sphere.

Q. A solid sphere is in rolling motion. In rolling motion a body possesses translational kinetic energy

(K_{t})

as well as rotational kinetic energy

(K_{r})

simultaneously. The ratio

K_{t} : (K_{t} + K_{r})

for the sphere is?

Q. A solid sphere of radius

r

is rolling on a horizontal surface. The ratio between the rotational kinetic energy and total kinetic energy is:

Q. Assertion :Work done by friction force in case of pure rolling,is equal to change in rotational energy. Reason: Ratio of kinetic energy of rotation to kinetic energy of translation is fixed for every case.

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Moment of Inertia of a Disc

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