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If you stand on a bathroom scale, the spring inside the scale compresses 0.50 mm, and it tells you your weight is 760 N. Now if you jump on the scale from a height of 1.0 m, what does the scale read at its peak?

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Lauria

  1. mg=kx
    k=mg/x=760/0.5•10⁻³=...
    mgh=mv²/2
    mv²/2=kx²/2.
    mgh=kx²/2.
    x=sqrt(2mgh/k)

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    Elena

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