We know that If a ball of mass 1 kg is kept at a height 10 m possess potential energy “mgh” i.e. (1×10×10)=100 J. (Taking earth surface as reference, where m = mass of object, g = acceleration due to gravity, h = height of object from earth surface.) what will be the kinetic energy of the ball when the ball is allowed to freely fall from a height 10m from the surface of earth and it hits the ground? (take g = 10 m/s2 and neglect air drag)