Two charged particle of equal mass are constrained to move along X and Y direction. The X – Y plane is horizontal and the tracks are smooth. The particles are released from rest when they were at positions shown in the figure. At the instant distance of q becomes 2r from the origin, find the location of charge Q.

Two charged particle of equal mass are constrained to move along X and

1.	Two charged particle of equal mass are constrained to move along X and Y direction. The X – Y plane is horizontal and the tracks are smooth. The particles are released from rest when they were at positions shown in the figure. At the instant distance of q becomes 2r from the origin, find the location of charge Q.
Answer» Correct Answer - Q is at a distance of 4r from O.

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