A body of mass 10 kg is moving with a velocity of 20 m `s^(-1)` . If the mass of the body is doubled and its velocity is halved, find : (i) the initial kinetic energy, and (ii) the final kinetic energy

Explanation

To solve the problem, we will calculate the initial and final kinetic energy of the body using the formula for kinetic energy, which is given by:

\[ KE = \frac{1}{2} m v^2 \]

where \( KE \) is the kinetic energy, \( m \) is the mass of the body, and \( v \) is the velocity of the body.

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