- #1
TristanJones
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Homework Statement
Q: A 3.000u object moving to the right through a laboratory at 0.8c collides with a 4.000u object to the left of the laboratory at 0.6c. Afterward, there are two objects, one of which is a 6.000u mass at rest.
A) what are the mass and speed of the other object?
B) determine the change in kinetic energy in the collision
Homework Equations
γ1m1v1 + γ2m2v2 = γ3m3v3+γ4m4v4
γ1m1c2+γ2m2c2 = γ3m3c2+m4c2
3.= The attempt at a solution
I've been struggling with this for a while, and haven't really made much headway. The part I'm finding difficulty with is using both conservation of momentum and conservation of energy formulas when I need to consider that the third particle technically isn't moving. I don't necessarily want the answers handed to me - just a few tips to get me headed in that direction would be much appreciated.