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11 November, 03:02

A pulley has an initial angular speed of 12.5 rad/s and a constant angular acceleration of 3.41 rad/s2. Through what angle does the pulley turn in 5.26 s?

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  1. 11 November, 03:21
    0
    Angle turn pulley is 113 rad

    Explanation:

    given data

    angular speed w = 12.5 rad/s

    angular acceleration a 3.41 rad/s²

    time t = 5.26 s

    to find out

    what angle does the pulley turn

    solution

    we get here angle by this equation that is here

    angle turn = w * t + 0.5 * a * t² ... 1

    put here value we get

    angle turn = w * t + 0.5 * a * t²

    angle turn = 12.5 * 5.26 + 0.5 * 3.41 * 5.26²

    Angle turn = 65.75 + 47.17

    Angle turn = 112.92 rad = 113 rad
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