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A hot-air balloon is ascending at the rate of 11 m/s and is 51 m above the ground when a package is dropped over the side. (a) How long does the package take to reach the ground? (b) With what speed does it hit the ground?

  • physics -

    Consider the package:

    hf=hi+vi*t-1/2 g t^2

    vi^2=2*11*51 so put that vi in the above equation. Hf=0, hi=51, solve for t.


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