Question

Explain why a boy and a man running with same speed have different kinetic energies.

Answer 1

1. Kinetic energy is the energy of a body due to its motion.
2. The formula for Kinetic Energy is $K.E.=\frac{1}{2}m{v}^2$
3. So, Kinetic Energy depends on mass and velocity of an object.
4. Here, the mass of the bodies of the boy and the man are different.
5. So their kinetic energies are different.