A Texas cockroach of mass 0.246 kg runs counterclockwise around the rim of a lazy Susan (a circular disk mounted on a vertical axle) that has a radius 18.0 cm, rotational inertia 3.36 x 103 kg-m², and frictionless bearings. The cockroach's speed (relative to the ground) is 2.75 m/s, and the lazy Susan turns clockwise with angular velocity wo = 3.31 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) Number i Units (b)
A Texas cockroach of mass 0.246 kg runs counterclockwise around the rim of a lazy Susan (a circular disk mounted on a vertical axle) that has a radius 18.0 cm, rotational inertia 3.36 x 103 kg-m², and frictionless bearings. The cockroach's speed (relative to the ground) is 2.75 m/s, and the lazy Susan turns clockwise with angular velocity wo = 3.31 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) Number i Units (b)
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Transcribed Image Text:A Texas cockroach of mass 0.246 kg runs counterclockwise around the rim of a lazy Susan (a circular disk mounted on a vertical axle)
that has a radius 18.0 cm, rotational inertia 3.36 x 10³ kg-m?, and frictionless bearings. The cockroach's speed (relative to the ground)
is 2.75 m/s, and the lazy Susan turns clockwise with angular velocity wo = 3.31 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)
Number
Units
(b)
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