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A particle moves with decreasing speed a...

A particle moves with decreasing speed along the circle of radius R so that at any moment of time its tangential and centripetal accelerations are equal in magnitude. At the initial moment , t =0 its speed is u.

The magnitude of tangential acceleration at ` t = R/(2u)` is

A

`u^(2)/R`

B

`(2u^(2))/(3R)`

C

`(4u^(2))/(9R)`

D

`(7u^(2))/(36R)`

Text Solution

Verified by Experts

The correct Answer is:
C
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