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Momentum Chapter 12.3 Notes Newton’s Third Law of Motion Action and Reaction Forces Ex. 1) Two bumper cars colliding Ex. 2) Pressing your hand against the wall Ex. 3) Driving a nail into wood Action-Reaction Forces and Motion Action – Reaction Forces Momentum Example 5 Example 5 Momentum Example 6 What do we know? What do we want to know? What formula should we use? Solve! Example 7 What do we know? What do we want to know? What formula should we use? Solve! Example 8 Example 9 7 (2.5, 6.5) 6 5 4 3 2 1 0 .5 1 1.5 2 2.5 Conservation of Momentum Conservation of Momentum Example 10: Train Wreck