- Newtons first(1st) law of motion,
- Second(2nd) Law of motion
- and Newton's third(3rd) Law of motion.
Newtons first law of motion
Newtons first law of motion simply means that no change in motion takes place unless an external force acts on the body.
Newtons second law of motion
The rate of change of momentum of a body is directly proportional to the external force acting upon it.
In its simplest form what newtons second law of motion is saying the acceleration on a body is directly proportional to the external force applied.
The formulas relating to newtons second law of motion is:
Force = mv - mu / t
or can be simplified as:
F = m(v - u) / t
but remember a = v - u / t
therefore F = ma
Where F is force, m is mass, u and v are initial and final velocity respectively, t is time and a is acceleration.
Newtons third law motion
Newtons 3rd law of motion states that if a body A exerts a force on a body B, then Body B will exert an equal but opposite force on Body A.
Applications of Newtons Laws of motion:
1st law:- When a car crashes the car stops but the person on the inside continues to move because there is no external force exerted on the person.
2nd Law:- Increase the force, by using gas, on the car and the acceleration will also increase.
3rd Law:- A bouncing ball applies a force to the ground and the ground applies an equal but opposite force on the ball.
Interested in more Science notes ?
Interested in more Science notes ?
15 Response to Newton's Laws of Motion
Hahahahahah!!! Funny guys! I'm sure some chemistry and physics teachers have read answers like that in exams.
Great!!!! Hahaha!! You definitely are funny guys!
You teaches newton's law to reader in very easy way, When i was in O ' level, this question was very important and comes mostly in exams papers.
Thanks for information
very simple answers, when i was in school i got puzzled in 2nd and 1st law of motions. but now i m computer science graduate and far away from chemistry!
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A body is directly proportional to the external force acting upon it.
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