A track is tangent to a circular track of radius r Two particles A and B start simultaneously from a common point of track

Question

A track is tangent to a circular track of radius r Two particles A and B start simultaneously from a common point of track Particle A moves with a uniform speed Vo on the straight track whereas particle B moves on the circular track always collinear with centre of track and the point A If the speed of B when it is equidistant from the centre and particle A iso then find the value of k D B

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