Well:
0 = m1v1 + m2v2
v1 = -m2v2/m1
And:
0.5m1v12 + 0.5m2v22 = 0.5kx2
I don't know what to do next, since I also don't know the value of the elastic potential energy. Could you help me?
Let's say there are two masses, attached together by a string, and there's a compressed spring in between them. When the string in between is cut off, the spring unloads, pushing both masses in opposite directions.
My thinking:
1. Their momentums will be equal to each other.
Their momentum...