The kinetic energy of a moving object depends on its mass and its

Velocity

Explanation:

Kinetic Energy of a body can be defined as the amount work needed to accelerate a body of  mass, m, from a position of rest to a particular velocity.

It is also the energy possessed by a body due to its motion.

Mathematically, it is given as:

As seen from the formula, the Kinetic energy is dependent on the mass of the body, m, and the square of the velocity, v.

Typically, the mass of an object is a constant value, hence, the kinetic energy varies as velocity varies.

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