Chapter 17.1, Problem 5dTH

Suppose the block in the previous problem were launched with the same initial speed on the following frictionless ramps. In each case stale whether the magnitude of the net work done on the block from the bottom to the top of the ramp is greater than, less than, or equal to the magnitude of the net Work done on the block in problem 2. Explain your answer in each case.

d. The ramp is curved.

Use the work-energy theorem to rank the final speeds of the block on the ramps (a−d), assuming the block is launched with the same initial speed in each case. If the final speeds are the same in any of the cases, stale that explicitly. Explain.