ch. 6 Momentum

equal

2 skaters of different masses stand facing each other. if the skaters push away from each other, the momentum of the 2 skaters after they push away is

it comes to a rest

A billiard ball collides with a stationary identical billiard ball in an elastic head-on collision. After the collision, which of the following is true of the first ball?

elastic

Two objects move separately after colliding, and both the total momentum and total kinetic energy remain constant. Identify the type of collision.

perfectly inelastic

Two objects stick together and move with a common velocity after colliding. Identify the type of collision.

the less massive object had gained momentum

Two objects with different masses collide and bounce back after an elastic collision. Before the collision, the two objects were moving at velocities equal in magnitude but opposite in direction. After the collision

conserved

a ball collides with another ball at rest. the total momentum of the balls is

momentum is always conserved

in a two body collision...

the momentum of one object will increase by the amount that the momentum of the other object decreases.

in an inelastic collision between two objects with unequal masses

momentum is conserved

in two body collision, if KE is conserved, what happens to momentum?

elastic

two things collide with no loss of kinetic energy