Recent content by jhthorn

the reason i choose ω=u/r was because of the rod wil perform a uniform circular motion and i couldn't se what else to do. But all the energy from the speed will not be transferred to the rod because it is an elastisc collision, i get that. So i have to use (u-v) insted of ω? L[/f] is that...

Homework Statement a homogeneous rod of length 2l and mass M can turn without friction in a horizontal plane and about a fixed vertical axis O through the center of mass of the rod. initially, the rod is at rest. A particle of mass m collides in a short, completely elastic collision with one...