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.
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter10: Fixed-axis Rotation
Section: Chapter Questions
Problem 38P: During a 6.0-s time interval, a fly-wheel with a constant angular acceleration turns through 500...
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