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In the last question, the two particles ...

In the last question, the two particles A and B are initially held at a distance `r=(qQ)/(2pi in_(0)m u^(2))` apart. Particle B is projected directly towards A with velocity u and particle A is released simultaneously. Find the velocity of particle A after a long time. Consider coulomb force only.

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The correct Answer is:
`((1+sqrt(3))/(2))u`
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