Figure (10-Q3) shows a small wheel fixed coaxially on a bigger one of double the radius. The system rotates about the common axis. The strings supporting A and B do not slip on the wheels. If x and y be the distances travelled by A and B in the same time interval, then


Angular frequency ω is constant.


V= ωr.


So, A’s velocity is VA= ωR


B’s velocity is VB= 2ωR


Hence,



Y=2x.

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