Recent content by oneman49

I see, could one also think of it as driving a car in a world without any nonconservative forces and jumping out of the car at 30 mph? Both the person jumping put and the car will have the same velocities but different momentums? V(M+m)=m1v1 + m2v2

Also credits to Physics by Giancoli (6th edition) for question - forgot to post on there and cannot edit from my phone.

Hi, Im new to PF and Physics so pardon my likely extremely basic question (teaching myself physics). 1.) Question: (a) an empty sled is sliding on frictionless ice when susan drops vertically from a tree above onto the sled. When she lands, does the sled speed up, slow down, or keep the same...