39thats the question i have got.
i am not so good at this topic that i can alter the question. sorry for that.
A small ring of mass `m` is threaded on a horizontal smooth rod which is rotating about its end with constant angular velocity `ω` . The ring is initially located at the axis of rotation.When the distance of the ring from the axis becomes `r` , find the power required to rotate the system with same angular velocity.
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4 Answers
1please make the problem a little bitmore clearer ..
especially the last line
39
