Newton's Third Law of Motion - Revision history

Awasil103: Alexander Wasil, third and final edit, fixed all images erroring when displaying

2026-04-29T04:02:35Z

Alexander Wasil, third and final edit, fixed all images erroring when displaying

Awasil103: Alexander Wasil, second edit, added image with code i wrote, of two spheres colliding, with force arrows demonstrating newtons third law

2026-04-29T03:57:26Z

Alexander Wasil, second edit, added image with code i wrote, of two spheres colliding, with force arrows demonstrating newtons third law

← Older revision		Revision as of 23:57, 28 April 2026
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	[https://phet.colorado.edu/sims/collision-lab/collision-lab_en.html PhET Collision Lab]		[https://phet.colorado.edu/sims/collision-lab/collision-lab_en.html PhET Collision Lab]

	~~(custom GlowScript model to prove how this works during a collision~~. ~~the masses were specifically set to be completely different, with one light sphere and one heavy sphere to show that the force is still identical on both~~. )		[[File:Screenshot 2026-04-28 at 11.50.33 PM.png]]

	~~[[File:NewtonsThirdLaw Sim.png\|thumb\|right\|450px\|~~GlowScript model showing colliding spheres with identical force magnitudes of 6 N, proving that action-reaction pairs stay equal regardless of mass.]]		GlowScript model showing colliding spheres with identical force magnitudes of 6 N, proving that action-reaction pairs stay equal regardless of mass.

	==Examples==		==Examples==
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	(b)		(b)
	~~<br>I fixed the misunderstanding here regarding the block interactions. To find the force of block 2 on block 1, you have to look at the force~~

Awasil103 at 03:28, 29 April 2026

2026-04-29T03:28:41Z

Show changes

Awasil103: Fixed a major misunderstanding regarding internal vs. external forces in the system diagrams and wrote a much more concise, correct description of how they cancel out. Completely rebuilt the math sections using specific backend tags to fix the broken display and make sure every formula looks clean and sharp. Hand-aligned all the multi-step physics problems so the math actually lines up vertically, making the solutions way easier to follow. Corrected the confusing explanation of Newton's Third

2026-04-29T02:10:25Z

Fixed a major misunderstanding regarding internal vs. external forces in the system diagrams and wrote a much more concise, correct description of how they cancel out. Completely rebuilt the math sections using specific backend tags to fix the broken display and make sure every formula looks clean and sharp. Hand-aligned all the multi-step physics problems so the math actually lines up vertically, making the solutions way easier to follow. Corrected the confusing explanation of Newton's Third

Show changes

Sydney: /* History */

2019-07-08T17:44:19Z

History

← Older revision		Revision as of 13:44, 8 July 2019
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	[[File:Sir Isaac Newton (1643-1727).jpg\|right\|200px\|Sir Isaac Newton (1643-1727)]] Sir Isaac Newton was a renowned scientist and mathematician who helped create a foundation for modern studies. He was born in England in 1643 and worked his way to earn a bachelor’s and master’s degree from Trinity College Cambridge. He was highly interested in math, physics, and astronomy and wrote many of his ideas in a journal. One of those ideas was about the three laws of motion. In 1687 Isaac Newton made his work on his book, Philosophiae Naturalis Principia Mathematica or Principia known to the public. He discussed the principles of time, force, and motion that helped create modern physical science and helped account for much of the phenomena viewed in the world. Some of the principles he discusses include acceleration, initial movement, fluid dynamics, and motion. Newton’s Laws first appeared in the Principia and discussed the relationship that exists between forces acting on a body and the motion of the body. For the third law, he stated that for every action/force in nature, there will be an equal and opposite reaction.		[[File:Sir Isaac Newton (1643-1727).jpg\|right\|200px\|Sir Isaac Newton (1643-1727)]] Sir Isaac Newton was a renowned scientist and mathematician who helped create a foundation for modern studies. He was born in England in 1643 and worked his way to earn a bachelor’s and master’s degree from Trinity College Cambridge. He was highly interested in math, physics, and astronomy and wrote many of his ideas in a journal. One of those ideas was about the three laws of motion. In 1687 Isaac Newton made his work on his book, Philosophiae Naturalis Principia Mathematica or Principia, known to the public. He discussed the principles of time, force, and motion that helped create modern physical science and helped account for much of the phenomena viewed in the world. Some of the principles he discusses include acceleration, initial movement, fluid dynamics, and motion. Newton’s Laws first appeared in the Principia and discussed the relationship that exists between forces acting on a body and the motion of the body. For the third law, he stated that for every action/force in nature, there will be an equal and opposite reaction.

	== See also ==		== See also ==

Sydney: /* Difficult */

2019-07-08T17:42:14Z

Difficult

← Older revision		Revision as of 13:42, 8 July 2019
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	'''Answer'''		'''Answer'''

	a = V² / (2x) = 2.5 m/s²		acceleration of the cable and block: a = V² / (2x) = (5²) / (2)(5) = 2.5 m/s²
	F = M * a → 100 = (30+m) * 2.5		solve for mass: F = M * a → 100 = (30+m) * 2.5
	m = 10 kg		m = 10 kg

	==Connectedness==		==Connectedness==

Sydney: /* Simple */

2019-07-08T17:38:24Z

Simple

← Older revision		Revision as of 13:38, 8 July 2019
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	'''Question'''		'''Question'''

	[[File: Snip20151128_10.png\| thumb \| left \| 250px \|Simple Example]]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 B then runs into the back of Car A, What can be said about the force on Car A on Car B and the force on Car B on Car A?		[[File: Snip20151128_10.png\| thumb \| left \| 250px \|Simple Example]]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?


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	B exerts the same amount of force on A as A exerts on B.		B exerts the same amount of force on A as A exerts on B.
	Just the direction of ~~both~~ the forces will be in the opposite direction.		Just the direction of the forces will be in the opposite direction.

	===Middling===		===Middling===

Sydney: /* Main Idea */

2019-07-08T17:37:05Z

Main Idea

← Older revision		Revision as of 13:37, 8 July 2019
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	==Main Idea==		==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.		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, 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.		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.
	===A Mathematical Model===		===A Mathematical Model===

Sydney: /* History */

2019-07-05T23:09:20Z

History

← Older revision		Revision as of 19:09, 5 July 2019
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	[[File:Sir Isaac Newton (1643-1727).jpg\|right\|200px\|Sir Isaac Newton (1643-1727)]] Sir Isaac Newton was a renowned scientist and mathematician who helped create a foundation for modern studies. He was born in England in 1643 and worked his way to earn a bachelor’s and master’s degree from Trinity College Cambridge. He was highly interested in math, physics, and astronomy and wrote many of his ideas in a journal. One of those ideas was about the three laws of motion. In 1687 Isaac Newton made his work on his book, Philosophiae Naturalis Principia ~~Mathematic~~ or Principia known to the public. He discussed the principles of time, force, and motion that helped create modern physical science and helped account for much of the phenomena viewed in the world. Some of the principles he discusses include acceleration, initial movement, fluid dynamics, and motion. Newton’s Laws first appeared in the Principia and discussed the relationship that exists between forces acting on a body and the motion of the body. For the third law, he stated that for every action/force in nature, there will be an equal and opposite reaction.		[[File:Sir Isaac Newton (1643-1727).jpg\|right\|200px\|Sir Isaac Newton (1643-1727)]] Sir Isaac Newton was a renowned scientist and mathematician who helped create a foundation for modern studies. He was born in England in 1643 and worked his way to earn a bachelor’s and master’s degree from Trinity College Cambridge. He was highly interested in math, physics, and astronomy and wrote many of his ideas in a journal. One of those ideas was about the three laws of motion. In 1687 Isaac Newton made his work on his book, Philosophiae Naturalis Principia Mathematica or Principia known to the public. He discussed the principles of time, force, and motion that helped create modern physical science and helped account for much of the phenomena viewed in the world. Some of the principles he discusses include acceleration, initial movement, fluid dynamics, and motion. Newton’s Laws first appeared in the Principia and discussed the relationship that exists between forces acting on a body and the motion of the body. For the third law, he stated that for every action/force in nature, there will be an equal and opposite reaction.

	== See also ==		== See also ==

Sydney: /* Main Idea */

2019-07-02T00:54:06Z

Main Idea

← Older revision		Revision as of 20:54, 1 July 2019
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	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.		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.


	===A Mathematical Model===		===A Mathematical Model===