Two particles, A and B of masses m and 3m, are moving along X and Y axes res
Channel: Doubtnut
Date: 2020-03-29

Two particles, A and B of masses m and 3m, are moving along X and Y axes respectively, with the same speed v. They collide at the origin, and coalesce into one body, after the c ollision. What is the velocity of this coalesced mass ?