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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

a. R

B

2R

C

`2piR`

D

`piR`

Text Solution

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The correct Answer is:
A
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