Physics
Grade-10
Easy
Question
A boy is sitting in a merry-go-round. The time period of circular motion is 5 sec, and its speed of rotation is 70 m/s. What is the radius of the circle formed?
- 5.573 m
- 55.73 m
- 557.3 m
- 5573 m
Hint:
Using the formula of 
The correct answer is: 55.73 m
Time period, T = 5 s
Speed , v = 70 m/s
According to formula,
m
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