| A | B |
|---|
| A 75 kg person walking around a corner bumped into an 80kg person who was running around the same corner. The momentum of the 80 kg person | decreased |
| 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, | the less massive object had gained momentum |
| Two skaters stand facing each other. One skater's mass is 60 kg. and the other's mass is 72 kg. If the skaters push away from each other without spinning. | Their momenta are equal but opposite. |
| Two swimmers relax close together on air mattresses in a pool. One swimmer's mass is 48 kg, and the other's mass is 55 kg. If the swimmers push away from each other, | their momenta are equal but opposite |
| In a two-body collision, | Momentum is conserved. |
| Which of the following statements about the conservation of momentum is NOT correct? | Momentum is not conserved for a system of objects in a head-on collision. |
| A billiard ball collides with a stationary identical billiard ball in an elastic head-on collision. After the collision, which is true of the first ball? | It comes to rest. |
| .In a two-body collision, | .Momentum is conserved. |
| .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, | .the less massive object had gained momentum |
| .Which of the following statements about the conservation of momentum is NOT correct? | .Momentum is not conserved for a system of objects in a head-on collision. |
