A 0.150-m-radius grinding wheel starts at rest and develops an angular speed of 12.00 rad/s in 7.80 s.What is the average tangential acceleration of a point on the wheel's edge? A)0.231 m/s² B)1.54 m/s² C)10.3 m/s² D)14.0 m/s²

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Quizplus · Accepted Answer

The average angular acceleration is (12.00 rad/s) / (7.80 s) = 1.54 rad/s². The tangential acceleration is the angular acceleration multiplied by the radius: 1.54 rad/s² * 0.150 m = 0.231 m/s².

A 0150-M-Radius Grinding Wheel Starts at Rest and Develops an Angular