Describe the real-world examples of Newton's third law that were identified in "Applications of Newton's Laws."

As you sit in your chair, your body acts on the chair with one force, and the chair reacts on your body with yet another force. This is an example of Newton's third law in action. Newton's third law states that for every action, there is an equal and opposite reaction.

the action/reaction between a rocket and the gases forced out of the engine

the action/reaction between the Earth's colliding plates and the formation of mountains