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A ball is thrown straight up with an intial velocity of 85 ft/s. At what times will it have a height of 200 ft?

  • physics -

    h=vi*t-1/2 g t^2
    200=85*t-1/2 *33*t62 solve for time(s) t. use the quadratic formula.

  • physics -

    When 85 t - (g/2) t^2 = 200

    g = 32.2 ft/s^2

    Do the math. There will be two answers.

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