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physics

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a ball is thrown vertically upward at a speed of 45 m/s. how long does it take to return to the ground?

  • physics -

    Tr = (V-Vo)/g = (0-45)/-9.8 = 4.59 s. =
    Rise time.

    Tf = Tr = 4.59 s. = Fall time.

    Tr + Tf = 4.59 + 4.59 = 9.2 s. = Time to
    return to Gnd.

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