What is rolling kinetic energy ?

If a disc of mass 400 gm is rolling on a horizontal surface with uniform speed of 2 m/s, then its rolling kinetic energy will be

If a solid sphere of mass 500 gram rolls without slipping with a velocity of 20 cm/s, then the rolling kinetic energy of the sphere will be

If a solid sphere of mass 1 kg rolls with linear speed of 1m/s, then the rolling kinetic energy will be

A wheel of mass 8 kg and radius 40 cm is rolling on a horizontal road with angular velocity 15 rad/s. If the moment of inertia of the wheel about its axis is 0.64kg m^2, then the rolling kinetic energy of wheel will be

What is fraction of translational kinetic energy of rolling ,circular disc to its total kinetic energy ?

The radius of a wheel is R and its radius of gyration about an axis passing through its centre and perpendicular to its plane is K. If the wheel is rolling without slipping the ratio of its rotational kinetic energy to its translational kinetic energy is

The total energy of an electron in the first excited state of the hydrogen atom is about -3.4eV . What is the kinetic energy of the electron in this state?

When a solid sphere rolls without slipping on a surface, its rotational kinetic,energy is 40 J. Then its total kinetic energy is

What is kinetic energy of 1g of O_(2) at 47^(@)C ?

The ground state energy of hydrogen atom is -X eV . What will be the kinetic energy of the electron in this state?