Physics

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A ball is thrown horizontally from the roof of a building 55 m tall and lands 50 m from the base. What was the ball's initial speed?

  • Physics -

    how long does it take to hit the ground?
    h=1/2 g t^2
    55=4.9 t^2 solve for time t.

    horizontal distance= speed*time
    solve for speed.

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