- #1
Tonyt88
- 62
- 0
So I have this problem:
A mass m travels to the right at 4c/5, and another mass m is at rest.
They ask fro the energy and momentum of each particle, so I have:
Energy of traveling: 5/3 mc^2
Energy of rest: mc^2
Momentum of traveling: 4mc/3
Momentum of rest: 0
Then they ask for the velocity of the CM of the system:
Which I have 2c/5, but then some people are telling me c/2.
But anyway, I have to solve for the velocities of the particles in the CM frame, so how I do go from there.
A mass m travels to the right at 4c/5, and another mass m is at rest.
They ask fro the energy and momentum of each particle, so I have:
Energy of traveling: 5/3 mc^2
Energy of rest: mc^2
Momentum of traveling: 4mc/3
Momentum of rest: 0
Then they ask for the velocity of the CM of the system:
Which I have 2c/5, but then some people are telling me c/2.
But anyway, I have to solve for the velocities of the particles in the CM frame, so how I do go from there.