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March 25, 2017

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The maximum speed of a child on a swing is 4.90 m/s. The child's height above the ground is 0.525 m at the lowest point in his motion. How high above the ground is he at his highest point?

  • physics - ,

    h₀=0.525 m, v = 4.9 m/s, H=?
    mv²/2= mgh
    h= v²/2g
    H=h+h₀= v₀²/2g + h₀

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