rotational-motion

Related Questions

• The moment of inertia of a body about a given axis is 2.4 kg–m2. To produce a rotational kinetic energy of 750 J, an angular acceleration of 5 $rad/s^2$ must be applied about that axis for

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• For a system to be in equilibrium, the torques acting on it must balance. This is true only if the torques are taken about

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• A ring is rolling on an inclined plane. The ratio of the linear and rotational kinetic energies will be

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• Two rigid bodies A and B rotate with rotational kinetic energies $E_A$ and $E_B$ respectively. The moments of inertia of A and B about the axis of rotation are $I_A$ and $I_B$ respectively. If $I_A = I_B /4$ and $E_A = 100 E_B$ the ratio of angular momentum ($L_A$) of A to the angular momentum ($L_B$) of B 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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