Question

A particle of mass m moving with speed v in positive x-direction collides perfectly inelastically with
another identical particle moving with same speed in positive y-direction. Find final velocity of the
combination​

Answer 1

Answer:

mv+ mv= 2m(vo)

v0= v

so velocity of combination remains same

Answer 2

Answer:

given v1 = vi v2 = vj

let final velocity is v'

By the law of conservation momentum

mv1 + mv2= 2 mV'

mvi + mvj = 2mV'

V' = vi + vj /2

V' = v/2 (I+j)