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Question
What force does a trampoline have to apply to a 45.0-kg gymnast to accelerate her straight up at $7.50 \textrm{ m/s}^2$? Note that the answer is independent of the velocity of the gymnast—she can be moving either up or down, or be stationary.
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Final Answer
$779 \textrm{ N}$
Solution Video

OpenStax College Physics Solution, Chapter 4, Problem 18 (Problems & Exercises) (1:09)

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