Question

1) It the velocity and mass of an object is twice the velocity and
mass of an other object, then how much will be the ratio of
their kinetic energies?​

Answer 1

Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2. If the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

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