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Trampoline requires athletes to jump, fly and do air movement on a taut elastic net. In order to measure the jumping height of athletes, they can
As can be seen from the figure, the longest time for an athlete in the air is: t=4.3s-2.3s=2s.

Athletes throw vertically, so the maximum jumping height is:

H = 12g (T2) 2 = 5.0m, so ABD is wrong and C is right.

So choose C.

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