posted by carolyn
Tarzan is running towards a cliff, ready to swing down rescue Jane from some poisonous snakes, and make it back
up to a tree on the other side. For now, we are going to assume energy is conserved and ignore momentum. If the height of the cliff is 10m, the height of the tree on which Tarzan hopes to land is 7 m, and the mass of Tarzan is 100kg and the mass of Jane is 50 kg. What velocity does Tarzan have to be running to rescue Jane?