Recent content by nx2000

i think I am getting more confused, so no not really

i don't really know

Um they had 0 momentum?

Momentum = m1v1+m2v2?

Momentum??

Well I am sure energy is conserved in the problem because I think when they come together, its an elastic collision. so then I thought is energy is conserved, than KE=.5mv^2. Then I thought that posed a problem because 1) I don't know the energy, 2) I don't know the velocity. And then I was just...

I'm real lost with this problem, probably because I have no clue how to approach it, but if you can help, that would be nice. Two skaters with masses of 62 kg and 50 kg, respectively, stand 7.5 m apart, each holding one end of a piece of rope. (a) If they both pull themselves along the...