Harry jumps horizontally from the top of a building that is 20.0 m high and hopes to reach a swimming pool that is at the bottem of the bulding 10.0 m horizontally from the edge the building if he is to reach the pool what must his jump speed be?a. 2.01 m/s.
b. 4.08 m/s.
c. 4.95 m/s.
d. 7 m/s.
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Ответ:
A
Explanation: