http://www.ck12.org Chapter 4. Motion and Forces
momentum than before.
FIGURE 4.52
Q: What if two skaters have a head-on collision? Do you think momentum is conserved then?
A: As in all actions and reactions, momentum is also conserved in a head-on collision. You can see how at this URL:
http://www.physicsclassroom.com/mmedia/momentum/cthoi.cfm
Summary
- Whenever an action and reaction occur, momentum is transferred from one object to the other. However, total
momentum is conserved. This is the law of conservation of momentum.
Vocabulary
- momentum: Property of a moving object that makes it hard to stop; equal to the object’s mass times its
velocity.