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A cyclist moving on a circular track of ...

A cyclist moving on a circular track of radius 40 m completes half a revolution in 40 sec average velocity is ................ .

A

0

B

`2 m // s`

C

`4 m // s`

D

`2pi m // s`

Text Solution

Verified by Experts

The correct Answer is:
B
Displacement of the cyclist in half revolution is, d = diameter of the circular track i.e., d=80 m
Average velocity, `V=("Total displacement")/("Total time")=(80)/(40)`
`V=2 m // s`
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