Determine the potential energy and kinetic energy of a ball that has a potential energy of 10 Joules before it is dropped. The ball isn’t moving at the top position, is halfway down at the middle position, and is almost hitting the ground at the bottom position

Ahockey player of mass 82 kg is traveling north with a velocity of 4.1 meters per second he collides with the 76 kg player traveling east at 3.4 meters per second if the two players locked together momentarily in what direction will they be going immediately after the collision how fast will they be moving