A2 kg cart moving initially at 4 m/s strikes a 3 kg cart, initially at rest. The two collide inelastically, sticking together. What is
their velocity immediately after the collision?

The heliocentric and the geocentric models of the solar system included these central principles

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.