List of top Physics Questions on Kinetic Energy asked in AP EAMCET

A running man has half the kinetic energy of a boy of half his mass. The man speeds up by \(1 \, {m/s}^{-1}\) to have the same kinetic energy as the boy. The initial speed of the man is:
A light body of momentum \( P_L \) and a heavy body of momentum \( P_H \), both have the same kinetic energy, then:
A bullet of mass m and velocity v fired at the mass of sandbag M. The loss of kinetic energy in this process is ?