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A particle starts moving in a straight l...

A particle starts moving in a straight line with a constant acceleration ‘a’. At a time `t_1` seconds after the beginning of motion, the acceleration changes sign, remaining the same in magnitude. Determine the time from the beginning of motion, till it returns to the starting point

A

`t_1(2+sqrt2)sec`

B

`t_1(1+sqrt2)sec`

C

`t_1sqrt2 sec`

D

`2 sqrt2 t_1 sec`

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The correct Answer is:
A
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