Two balls with the same mass, one of wood and the other a ping-pong ball partly filled with sand, are
Torque in backward direction due to normal in the case of ping-pong ball is more than that of the wooden sphere.
Also, torque in forward direction due to friction in the case of ping-pong ball is less than that of the wooden sphere. So, ping-pong ball stops very soon. Loss of kinetic energy is changed into heat.