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A person standing on top of a building throws a ball with a horizontal velocity of 14 m/s. If the ball strikes the ground 65 m from the base of the building, how high is the building?

  • physics -

    distance = speed * time with no force in horizontal direction

    65 = 14 t
    t = 4.64 seconds in the air

    In the vertical direction it simply falls a distance h

    h = (1/2) g t^2 = 4.9 (4.64^2)

    h = 106 m

  • math -

    #dont know )=

  • physics -

    #dont know )= sorry, i knowed it but i forgot

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