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13 March, 08:50

What force does a trampoline have to apply to a 45.0-kg gymnast to accelerate her straight up at 7.50 m/s^2? (a) 104N (b) 338 N (c) 441 N (d) 779 N

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  1. 13 March, 08:56
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    b) 338 N

    Explanation: let m be the mass of the gymnast and a be the acceleration of the gymnast.

    the force required to accelerate the gymnast is given by:

    F = m*a

    = (45.0) * (7.50)

    = 337.5 N

    Therefore, the force a trampoline has to apply is 138 N.
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