A child is standing with folded hands at the center of a platform rotating about its central axis. The kinetic energy of the system is `K`. The child now stretches his arms so that the moment of inertia of the system doubles. The kinetic energy of the system now is

A child is standing wiith hands at the centre of a platform rotating about its central axis. The kinetie energy of the system K. The chilid now seretches his arms so that of the kinetic energy of the system is now.

A child is standing with folded hands at the centre of a platform rotating about its central axis. The K.E of the system is K. The child now stretches his arms so that the M.I of the system doubles. The K.E of the system now is

A child stands, hands at the side, on a turntable. The kinetic energy of system is K. The child now raises his arms, and the moment of inertia of system becomes twice. Then the kinetic energy of system will be …………

A horizonral circular plate is rotating about a vertical axis passing through its centre with an angular velocity omega_(0) . A man sitting at the centre having two blocks in his hands stretches out his hands so that the moment of inertia of the system doubles. If the kinetic energy of the system is K intially, its final kinetic energy will be