Physics

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A parachutist descending at a speed of 10.0 m/s loses a shoe at an altitude of 40.0 m. (Assume the positive direction is upward.) when does the shoe reach the ground??

  • Physics -

    hf=hi+vi*t-4.9t^2
    vi=-10 hf=0 hi=40 solve for time t

  • Physics -

    ...and the answer equals??

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