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A particle starts from rest with a time ...

A particle starts from rest with a time varying acceleration `a=(2t-4)`. Here `t` is in second and `a` in `m//s^(2)`
The velocity time graph of the particle is

A

parabola passing through origin

B

straight line not passing through origin

C

parabola not passing through origin

D

straight line passing through origin

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The correct Answer is:
A
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