Chapter 4, Problem 10PCE

Predict/Explain Two divers run horizontally off the edge of a low cliff. Diver 2 runs with twice the speed of diver 1. (a) When the divers hit the water, is the horizontal distance covered by diver 2 twice as much as, tour times as much as, or equal to the horizontal distance covered by diver 1? (b) Choose the best explanation from among the following:

1. I.            The drop time is the same for both divers.
2. II.            Drop distance depends on t².
3. III.            All divers in free fall cover the same distance.