Two point charges q1=q2=2muC are fixed a...

Two point charges `q_1=q_2=2muC` are fixed at `x_1=+3 m` and `x_2=-3m` as shown in figure. A third particle of mass 1 g and charge `q_3=-4muC` are released from rest at `y=4.0m`.Find the speed of the particle as it reaches the origin.

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