A pool cue with a mass of 60 kg strikes a pool ballwith a mass of 75 kg, at a velocity of 7 m/s . What velocity does the pool cue recoil with if the pool ball moves with a velocity of 6 m/s after the hit?

A10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg piece of lead, which is much denser than aluminum. which one has the greater buoyant force on it? explain. b - the aluminum a) both have the same buoyant force. b) the aluminum c) the lead d) it cannot be determined without knowing their volumes.