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Figure shows the acceleration-time graph...

Figure shows the acceleration-time graph of a particle moving along a straight line. After what time the particle acquires its initial velocity?

Text Solution

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The correct Answer is:
B, C
Area of a-t graph gives change in velocity
`:. Deltav=v_f-v_i`=area of a-t graph
Since, `v_f-v_i`

`:.` Net area of a-t graph should be zero
`:.` Area OABC=AreaCDE
Substituting the values we get,
`t_E=(2+sqrt3)s`
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