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March 28, 2017

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A fan blade is rotating with a constant angular acceleration of +13.7 rad/s2. At what point on the blade, as measured from the axis of rotation, does the magnitude of the tangential acceleration equal that of the acceleration due to gravity?

  • PHYSICS - ,

    The magnitude of the tangential acceleration is ra=13.7rad/s^2
    It equals the gravitational acceleration, which is 9.8m/s^2
    From there, just set the two equal to one another: 13.7r=9.8
    r=.7313m

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