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Physics

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What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 8.0 m/s when going down a slope for 5.0 s? How far does the skier travel in this time?

  • Physics -

    a = change in speed/ change in time
    = (8-0)/5 = 1.6 m/s^2
    d = (1/2) a t^2 = .5*1.6*25 = 20 meters
    or alternatively
    average speed = 4 m/s * 5 s = 20 meters

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