rotational-motion

Related Questions

• A ring takes time ${{t}_{1}}$ in slipping down an inclined plane of length L and takes time ${{t}_{2}}$ in rolling down the same plane. The ratio $\frac{{{t}_{1}}}{{{t}_{2}}}$ is

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• Two loops $P$and $Q$are made from a uniform wire. The radii of $P$and $Q$ are ${{r}_{1}}$ and ${{r}_{2}}$respectively, and their moments of inertia are ${{I}_{1}}$ and ${{I}_{2}}$respectively. If ${{{I}_{2}}}/{{{I}_{1}}=4}\;$ then $\frac{{{r}_{2}}}{{{r}_{1}}}$ equals

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• A strap is passing over a wheel of radius 30 cm. During the time the wheel moving with initial constant velocity of 2 rev/sec. comes to rest the strap covers a distance of 25 m. The deceleration of the wheel in $rad/s^2$ is

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• A spherical ball rolls on a table without slipping. Then the fraction of its total energy associated with rotation is

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