γm1u1 +γm2u2=γm3u3+γm4u4
γ2794.5Mev+γ3726MeV=5589Mev+γm4u
Then, this would be the equation for momentum conserved. But how do we solve for m4?
I know if we have the equations for momentum and energy then we divide momentum over energy
Homework Statement
A 3.000 u (1 u = 931.5 MeV/c2) object moving to the right through a laboratory at 0.8c collides with a 4.000 u object moving to the left through the laboratory at 0.6c. Afterward there are two objects, one of which is a 6.000 u object at rest.
A) Determine the mass and...