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March 27, 2017

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A constant net force of 406 N, up, is applied to a stone that weighs 33 N. The upward force is applied through a distance of 2.4 m, and the stone is then released. To what height, from the point of release, will the stone rise?

Thoughts: F = ma. Would the acceleration be g? You would divide the weight by g to get the mass of the stone, correct?

  • Physics - ,

    The acceleration a is given by
    a = F/m = 12.30 m/s^2
    The velocity when released is
    V = sqrt (2aX) = 7.68 m/s
    The height H that it reaches after that is given by
    gH = V^2/2
    H = V^2/(2g)

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