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Back to 10.3 Dynamics of Rotational Motion: Rotational Inertia

10.3 Exercise 17

Avg difficulty 2.5

Suppose you exert a force of 180 N tangential to a 0.280-m-radius 75.0-kg grindstone (a solid disk).

(a)What torque is exerted? (b) What is the angular acceleration assuming negligible opposing friction? (c) What is the angular acceleration if there is an opposing frictional force of 20.0 N exerted 1.50 cm from the axis?

OpenStax College Physics 2e, 10.3 Dynamics of Rotational Motion: Rotational Inertia, exercise 17

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Adapted from College Physics © 2022 Rice University. Licensed under CC BY 4.0. Sources: College Physics 2e, College Physics for AP® Courses 2e. Imported at revision f98d7a7.