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March 30, 2017

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A force of 50 N directed at an angle of 45 degrees from the horizontal pulls a 70 kg sled across a frictionless pond. The acceleration of the sled is most nearly (sin 45 degrees = cos 45 degrees = 0.7).

  • Science: Physics - ,

    50 cos 45 = 35

    f = m a
    35 = 70 a
    a = 35/70 = .5 m/s^2

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