even at very low velocities is kinetic energy of a body exactly equal to half of mass multiplied by velocity square.EXPLAIN

It is never exact, but as the velocity approaches zero the non-relativistic formula approaches the exact value.

Dear Soumyajit,

the energy of motion of a body, equal to the work it would do if it were brought to rest The translational kinetic energy depends on motion through space, and for a rigid body of constant mass is equal to the product of half the mass times the square of the speed. The rotational kinetic energy depends on rotation about an axis, and for a body of constant moment of inertia is equal to the product of half the moment of inertia times the square of the angular velocity. In relativistic physics kinetic energy is equal to the product of the increase of mass caused by motion times the square of the speed of light. The SI unit is the joule but the electronvolt is often used in atomic physics E_k, K, T, KE

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