Chap5_ThirdLaw - Chapter 5 Newton's Third Law of Motion and Adding up Forces at angles For every\"action there is a\"reaction Newton's Third Law of Motion

# Chap5_ThirdLaw - Chapter 5 Newton's Third Law of Motion and...

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Chapter 5 Newton’s Third Law of Motion and Adding up Forces at angles For every “action” there is a “reaction”…
Newton’s Third Law of Motion Whenever an object exerts a force on a second object, the second object exerts a force of equal magnitude in the opposite direction on the first object . First Object (Hammer) Second Object (Nail)
CheckA 1-ton car, going 60 km/h hits a 3-ton truck, going 40 km/h. On which vehicle is the force of impact greatest?On which vehicle is the change in velocity greatest?By what principles of physics?
Action and ReactionA common expressionof Newton’s 3rdLaw is:To every action there’s an equal and opposite reaction.What’s an “action”? How can reaction be “equal” and“opposite”?
Action-Reaction Pairs ???? ???? ???? ???? Here are some examples of action-reaction pairs. Think of examples of an object exerting a force on a second object. Practice identifying action-reaction pairs.
Another example : Mutual Push Situation 1: Mr. A and Mr. B push against each other.