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14 October, 23:38

Jenny is playing on her spring bed, jumping up and down. She weighs 480. N, and her spring bed has springs with spring constant 1100N/m. What is the gravitational potential energy he will reach when she jumps to. 32m?

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  1. 15 October, 00:37
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    153.6 J

    Explanation:

    Weight, mg = 480 N

    height jumped, h = 0.32 m

    g = 9.8 m/s^2

    Gravitational potential energy

    U = m x g x h

    U = 480 x 0.32

    U = 153.6 J

    Thus, the gravitational potential energy is 153.6 J.
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