Answered: 2. A Lazy Susan (M=0.5 kg) in the shape…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A Lazy Susan (M=0.5 kg) in the shape of a disk is free to rotate about its center without
friction. It is initially motionless when a Texas-sized cockroach (m=10 g) starts running
CCW along the rim. The angular speed of the Lazy Susan is then 1 rad/sec. With what
speed is the cockroach running (in the rest frame of the table, not the Lazy Susan)?

(What more data should be given according to you? If the question seems incomplete to you...)

2. A Lazy Susan (M=0.5 kg) in the shape of a disk is free to rotate about its center without
friction. It is initially motionless when a Texas-sized cockroach (m=10 g) starts running
CCW along the rim. The angular speed of the Lazy Susan is then 1 rad/sec. With what
speed is the cockroach running (in the rest frame of the table, not the Lazy Susan)?

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