A gas contains two types of particles. Particle A has mass m and velocity vo in the +z-direction. It collides head-on with particle B that has mass 5m and velocity 2vo in the -z-direction Electrostatic force then holds the particles together. What is the final velocity of the two-particle system?
AAAaannndd the bot gets it wrong yet again!
The initial momentum is not zero
conserve momentum, so
m*v0 - 5m(2v0) = (m+5m)v
v = -3/2 v0