Tarzan starts at rest near the top of a tall tree. He then swings on a vine and reaches the base of the tree, where he jumps off the vine and comes to rest on the ground. Discuss and compare Tarzan’s total energy at (a) the top of the tree, (b) just before he jumps off the vine at the bottom, and (c) when he is standing on the ground. Is Tarzan’s total energy the same in all three places? Explain how total energy is conserved in going from (a) to (b) to (c).