Concept explainers
Predict/Explain Two youngsters dive off an overhang into a lake Diver 1 drops straight down, and diver 2 runs off the cliff with an initial horizontal speed v0. (a) Is the splashdown speed of diver 2 greater than less than, or equal to the splashdown speed of diver 1 ? (b) Choose the best explanation from among the following:
- I. Both divers are in free fall, and hence they will have the same splashdown speed.
- II. The divers have the same vertical speed at splashdown, but diver 2 has the greater horizontal speed.
- III. The diver who drops straight down gains more speed than the one who moves horizontally.
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