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A body of mass m is moving with a unifor...

A body of mass m is moving with a uniform speed v along a circle of radius r, what is the average acceleration in going from A to B?

A

`2v^(2)//pir`

B

`2sqrt(2)v^(2)//pir`

C

`v^(2)//pir`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
`T=(2pir)/(4v)=(pir)/(2v)`
Change in velocity in going from A to B `=vsqrt(2)`
Average acceleration `=(vsqrt(2))/(pir//2v)=(2sqrt(2)v^(2))/(pir)`
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