Two identical charged spheres suspended from a common point by two massless strings of lengths 1 are initially at a distance d d

Question

Two identical charged spheres suspended from a common point by two massless strings of lengths 1 are initially at a distance d d apart because of their mutual repulsion The charges begin to leak from both the spheres at a constant rate As result the spheres approach each other with a velocity v Then v varies as a function of the distance x between the spheres as 1 Ux x 1 2 3 vx x 2 NEET 2016 2 vx x 4

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