A Texas cockroach of mass 0.150 kg runs counterclockwise around the rim of a lazy Susan (a circular disk mounted on a vertical axle) that has radius 20.0 cm, rotational inertia 5.55 x 103 kg m², and frictionless bearings. The cockroach's speed (relative to the ground) is 2.22 m/s, and the lazy Susan turns clockwise with angular speed wa = 2.67 rad/s. The cockroach finds a bread crumb on the rim and, of course, stops. A) What is the angular speed of the lazy Susan after the cockroach stops? B) Is mechanical energy conserved as it stops?

A Texas cockroach of mass 0.150 kg runs counterclockwise around the rim of a lazy Susan (a circular disk mounted on a vertical axle) that has radius 20.0 cm, rotational inertia 5.55 x 103 kg m², and frictionless bearings. The cockroach's speed (relative to the ground) is 2.22 m/s, and the lazy Susan turns clockwise with angular speed wa = 2.67 rad/s. The cockroach finds a bread crumb on the rim and, of course, stops. A) What is the angular speed of the lazy Susan after the cockroach stops? B) Is mechanical energy conserved as it stops?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter11: Angular Momentum

Section: Chapter Questions

Problem 89AP: A solid cylinder of mass 2.0 kg and radius 20 cm is rotating counterclockwise around a vertical axis...

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