Newton's Third Law of Motion: Difference between revisions
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===Simple=== | ===Simple=== | ||
[[File: | [[File: Snip20151128_10.png| thumb | left | 250px |If you push an object with 100N it will push back on you with equal but opposite force.]] | ||
Car B is stopped at a red light. The brakes in Car A have failed and Car A is coming towards Car B at 60 kmh. Car A then runs into the back of Car B, What can be said about the force on Car A on Car B and the force on Car B on Car A? | Car B is stopped at a red light. The brakes in Car A have failed and Car A is coming towards Car B at 60 kmh. Car A then runs into the back of Car B, What can be said about the force on Car A on Car B and the force on Car B on Car A? | ||
===MIddle=== | ===MIddle=== | ||
Revision as of 00:28, 28 November 2015
claimed by Karan Shah
Main Idea
Newton’s Third Law of Motion describes a push or pull that acts on an object as a result of its interaction with another object. According to this law for every action there is an equal and opposite re-action. This means that for every force there is a reaction force that is equal in size, but opposite in direction. Meaning that when an object 1 pushes another object 2 then object 1 gets pushed back with equal force but in the opposite direction.
The third law of motion is also referred to as the action-reaction law because both objects are part of a single interaction and neither force can exist without the other. An important concept to remember about Newton's Third Law of Motion is that the two forces are of the same type. For example, when you throw a ball in the sky the Earth exerts a gravitational force on the ball and the ball also exerts a
gravitational force that is equal in magnitude and opposite in direction on the earth. Another example, that can sum up the concept of Newton's Third Law is when you walk. When you push down upon the ground and ground pushes with the same force upward. Similarly, the tires of a car push against the road while the road pushes back on the tires.
Examples
Here are some problems regarding Newton's Third Law.
Simple
Car B is stopped at a red light. The brakes in Car A have failed and Car A is coming towards Car B at 60 kmh. Car A then runs into the back of Car B, What can be said about the force on Car A on Car B and the force on Car B on Car A?
MIddle
Difficult
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