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A particle is moving in a circular path ...

A particle is moving in a circular path whose portion vector is given by `barr = (acost)hat i +(asin t)hat j` then, the tangential component of acceleration at `t= (pi)/(2)` sec is

A

0

B

`am //sec^(2)`

C

`a//2 m//sec^(2)`

D

`a//4 m//sec^(2)`

Text Solution

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The correct Answer is:
A
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