Two particles A and B move with constant velocities V and V2 At the initial moment their position vectors are r and r2

Question

Two particles A and B move with constant velocities V and V2 At the initial moment their position vectors are r and r2 respectively The condition for particles A and B for their collision is Re AIPMT 2015 1 7 72 V V2 2 r r2 V2 V1 2 V2 V

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