﻿ A particle of mass m moving with a speed v along the x-axis, collides with another particle of the same mass m moving with the same speed v along the y-axis. After collision, the two particles coalesce. What is the magnitude and the direction of the velocity of the composite particle? : Kaysons Education

# A Particle Of Mass m moving With A Speed v along The x-axis, Collides With Another Particle Of The Same Mass m moving With The Same Speed V Along The y-axis. After Collision, The Two Particles Coalesce. What Is The Magnitude And The Direction Of The Velocity Of The Composite Particle?

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## Question

### Solution

Correct option is

AB = p1 is the momentum vector of the first particle and CB = p2 that of the second particle. Vector CB is shifted parallel to itself to a position BDso that the tail of BD is at the arrow head of AB. From the triangle law of vector addition, the resultant momentum P is given by vector AD.

The magnitude of the resultant is given by

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