1. The problem statement, all variables and given/known data Two unequal masses are connected by a light cord passing over a smooth pulley. State the gravitational potential energy [itex]\Delta[/itex]U(> or < or = 0) and the kinetic energy [itex]\Delta[/itex]K(> or < or = 0) of the system after the masses are released from rest? 2. Relevant equations 3. The attempt at a solution Both masses were originally at the same level. After released, both went in an opposite direction away from the equilibrium level. Thus, [itex]\Delta[/itex]U=0? Both gained speed, thus [itex]\Delta[/itex]K>0?