Question

# If a cyclist takes one minute to complete half revolution on a circular path $$120 m$$ radius. What is the average velocity?

A
1m/s
B
2m/s
C
3m/s
D
4m/s

Solution

## The correct option is D $$4 m/s$$After half revolution, the cyclist will be on the opposite side of the diameter from the point where he startedSo his displacement = diameter = $$2\times 120m=240m$$time taken is $$1min=60s$$ so average velocity $$v=\dfrac{240m}{60}=4m/s$$So, the correct answer is '4m/s'.Physics

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