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Marsha hits a tennis ball upward from the top of a 90 foot high cliff with an initial velocity of 16 ft/s. Marsha hit the ball when it was 6 ft. above the top of the cliff.
a. assume that the tennis ball will hit the ground below the cliff. Determine the equation for the height of the ball after t-seconds. Hint: If the initial height is 6 feet, how would you write a distance 90 feet below that height? Would you want to use the equation

  • Math -

    assuming the ground level below the cliff to be zero

    I would say:

    h(t) = -16t^2 + 16t + 96

  • Math -

    8.95 seconds

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