Work, Energy And Power For Rotating Body MCQ - Practice Questions with Answers

Two rotating bodies A and B of masses m and 2m with moments of inertia I_A and  have equal kinetic energy of rotation. If L_A and L_B are their angular momenta respectively, then

A body of radius $R$ and mass $M$ is initially rolling on a level surface with speed $\omega$. It then rolls up an inclined to a maximum height $h$. If $h=\frac{{\mathrm{u}}^2}{\mathrm{g}}$. The geometrical shape of the body is.

A hollow sphere rolling on a surface what is the % of its translation kinetic energy-

A solid sphere is rolling on a surface its speed is $(\mathrm{V})$ and mass $(\mathrm{M})$. The its kinetic energy is

when a sphere of the moment of inertia.$I$ rolls down on an inclined plane then the percentage of rotational kinetic energy will be -

A dog of mass 10kg runs at a speed of 5m/sec at the surface of a circular drum of radius 1m. The drum can rotate about its axis AB freely as shown in the figure. The motion of the dog causes the rotation of the drum. The speed of rotation is such that the relative position of the dog is unaltered. The kinetic energy of the rotation of a dog is

An object of mass '2kg' is rotating with an angular velocity of '1rad/s' about an axis that is '1m' away from the centre of mass. If the radius of gyration of this object is '2m'. Then rotational kinetic energy of the body is given by: