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physical science

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A stone is dropped from rest at the top of a tall building. Determine the distance the ball has traveled after ½ second, one second, 3/2 seconds, and 2 seconds. How fast is the ball moving at the end of the 2 seconds?

  • physical science - ,

    d = (1/2) g t^2 = 4.9 t^2

    if t = 1/2 for example
    d = 4.9/4 = 1.225 meters

    to get speed
    v = g t = 9.8 t
    if t = 2 seconds
    v = 19.6 meters/second

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