Question: 1 8 . What force does a trampoline have to apply to a 4 5 . 0 - kg gymnast to accelerate her straight up

18. What force does a trampoline have to apply to a 45.0-kg gymnast to accelerate her straight up at ? Note that the answer is independent of the velocity of the gymnastshe can be moving either up or down, or be stationary.

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