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20 September, 12:12

A wheel of radius 8 inches is rotating 15 degrees / sec. What is the linear speed v, the angular speed in RPM, and the angular speed in rad/sec?

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  1. 20 September, 13:18
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    Linear speed is v, and angular speed is w.

    15 deg/sec * 3600 sec/min * 1 rev/360 deg = 150 RPM

    15 deg/sec * 2pi rad/360 deg = 0.262 rad/sec

    v = wr = 0.262 * 8 = 2.096 in/sec
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