Recent content by navydrgn

Okay, I oversimplified the problem, then, by assuming I could apportion the kinetic energy just based on ratios of masses. In a way that's what I was doing, (after your initial advice) but I didn't have a name for it. Thus (using your notation, where m1 = 4.0 kg, and m2 = 8.0 kg), we have...

Yes, thank you, it should be 25 cm. That was a typo. So in order to solve the system, I'd have to determine a Pi (initial momentum) and a final momentum (Pf) using P = mv, where m is mass and is v is velocity? And the solve for the final velocity of both blocks? Why can't this problem...

Homework Statement A spring is attached to two blocks. The smaller block is 4.0 kg and the larger block is 8.0 kg. Initially the spring is in equilibrium and the blocks are separated by a d = 25 cm. The spring constant k = 400 N/m. No friction is present. I now push on the two blocks...