7. A drum rotates around its central axis with an initial angular velocity of 12.6 rad/s. If the drum decelerates at a constant rate to 8.4 rad/s in 2 seconds, a) What is the angular deceleration? b) Through what angle did it rotate and how many revolutions did it make? (radius 0.14m) c) Find the tangential acceleration at the rim of the drum.

7. A drum rotates around its central axis with an initial angular velocity of 12.6 rad/s. If the drum decelerates at a constant rate to 8.4 rad/s in 2 seconds, a) What is the angular deceleration? b) Through what angle did it rotate and how many revolutions did it make? (radius 0.14m) c) Find the tangential acceleration at the rim of the drum.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And Gravitation

Section: Chapter Questions

Problem 1CQ: A disk rotates about an axis through its center. Point A is located on its rim and point B is...

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