When two masses collide, assuming there are no external forces on the system of the two masses, will they collide with the same velocities or will it depend on the conserved momentum?
Edit -- Assume they're released from rest, since that's what the problem I'm working on states.
I'm not sure since I already turned the assignment in but when I get it back, if it's wrong, I'll post what I got for those to figure out where the mistake was.
Angular momentum.
Edit -- I just worked the problem again and ended up with an angle of 18.46 degrees above the vertical. Does anyone know if that's what I should have ended up with?
I think "The maximum angular displacement of the sign is 25.0° on both sides of the vertical" and "The sign is swinging without friction" imply that the sign starts 25 degrees above the vertical and goes back and forth forever.
By the way, as far as the not enough information given argument...
We got this homework question out of the Physics for Scientists and Engineers book and I came up with some answers but am not sure if they are correct. It's a pretty confusing one and I'm not expecting anyone to answer this before the assignment is due -- it would be nice to see how to solve it...