Physics
Easy

Question

# A girl is sitting in a merry-go-round.  The time period of circular motion of the merry-go-round is 8 sec and it forms a circle of 40 m radius. What is the speed of rotation?

## 30.9 m/s810.4 m/s480.34 m/s31.4 m/s Hint:

## The correct answer is: 31.4 m/s

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