An swimmer of mass m is at a swimming pool. She climbs the steps to the diving board 4.0 m above the water. She jumps off the board, which enables her to rise a further 0.7 m before she begins her descent into the pool. At what speed does she enter the water?
Due 5 jan 2013
PE=KE
mg(H+h) =mv²/2
v=sqrt{2g(H+h))