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DaniilM [7]
3 years ago
6

A cockroach of mass m lies on the rim of a uniform disk of mass 4.00m that can rotate freely about its center like a merry-go-ro

und. Initially the cockroach and disk rotate together with an angular velocity of 0.260 rad/s. Then the cockroach walks halfway to the center of the disk.(a) What then is the angular velocity of the cockroach – disk system?(b) What is the ratio K/K0 of the new kinetic energy of the system to its initial kinetic energy?(c) What accounts for the change in the kinetic energy?

Physics
1 answer:
Alexxandr [17]3 years ago
5 0

Answer:

Explanation:

A. And B. solutions are in the attachment.

C.

When the cockroach walks towards the center of the circle, positive work is done so kinetic energy increases.

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