Help me: Newton's 3 laws of motion?

Question

Can you please summerize each law of motion in your own words?

Answer 1

Newton's 1st law: Everybody continues to be in its state of rest or of uniform motion unless an external force is applied on it.

Newton's 2nd law: The rate of change of momentum of a body is directly proportional to force applied and takes place in the direction of force.

Newton's 3rd law: Forces exerted by two interacting bodies are always equal and opposite in nature. In other words, every 'action' has an equal and opposite 'reaction'.

Answer 2

Law 1:law of inertia
an object at rest will tend 2 remain at rest and an object that's moving will tend 2 do so untill it is made 2 do otherwise by an external force acting upon it.
Say u r travelling by a bus.If the moving bus happens 2 stop very suddenly,what happens 2???
you will tend 2 jerk forward.Know why????
Coz the bus was in motion and hence ,so were u.An xternal force made u stop,ur moving body opposed 2 that an hence u jerked forward.Law 1 explains this event.

Law 2:
the rate of change of momentum of an object is directly proportionate to the amount of forceexerted on it.
say force generates motion,a double force doubles motion,triple force triples motion and so on.Thats what directly proportionate means.By the way momentum[in classical mechanics] means
product of mass of object n velocity.i.e m=mass in2 velocity.
Also this direction of motion is in the same direction of the force.

Law3:
every action has an equal n opposite reaction.
F u have ever fired a gun ,u will know that when u shoot a bullet u r immediately thrown back by violent pressure.This pressure is nothing but the 'reaction' triggered by the action of firing the bullet

well, that wraps up Newton's 3 in a nutshell.
If u still dont understand be free 2 ask again.
Hope it helps u .
See ya

Answer 3

The principle used for the motion of a rocket is based on Newton's third law of motion. When the fuel in the rocket is ignited;it burns as a result of chemical reaction. The exhaust gases escape with force through a small opening at the tail end of the rocket. They exert an equal and opposite reaction force on he rocket. It is this reaction force which makes rocket move in the forward direction. !!!Hope I Helped!!!

Answer 4

I. Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.
Something we more commonly call as the state of inertia - like not getting up in the morning until we're in trouble.

II. The relationship between an object's
Mass m,
its Acceleration a,
and the applied Force F
is F = m*a.
For example, the impact with which a bully hits you depends on his size and the rate at which his fist is coming at you!
And,

III. For every action there is an equal and opposite reaction.
More time on the XBox = Less time doing homework
Less time in homework = More time in detention
More time in detention = Less time on the XBox
Hence proved!

Answer 5

Newton's First Law of Motion: If you don't have them, my opinions are at the bottom-hope you get a good grade!
I. Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.

This we recognize as essentially Galileo's concept of inertia, and this is often termed simply the "Law of Inertia".

Newton's Second Law of Motion:
II. The relationship between an object's mass m, its acceleration a, and the applied force F is F = ma. Acceleration and force are vectors (as indicated by their symbols being displayed in slant bold font); in this law the direction of the force vector is the same as the direction of the acceleration vector.

This is the most powerful of Newton's three Laws, because it allows quantitative calculations of dynamics: how do velocities change when forces are applied. Notice the fundamental difference between Newton's 2nd Law and the dynamics of Aristotle: according to Newton, a force causes only a change in velocity (an acceleration); it does not maintain the velocity as Aristotle held.

This is sometimes summarized by saying that under Newton, F = ma, but under Aristotle F = mv, where v is the velocity. Thus, according to Aristotle there is only a velocity if there is a force, but according to Newton an object with a certain velocity maintains that velocity unless a force acts on it to cause an acceleration (that is, a change in the velocity). As we have noted earlier in conjunction with the discussion of Galileo, Aristotle's view seems to be more in accord with common sense, but that is because of a failure to appreciate the role played by frictional forces. Once account is taken of all forces acting in a given situation it is the dynamics of Galileo and Newton, not of Aristotle, that are found to be in accord with the observations.

Newton's Third Law of Motion:
III. For every action there is an equal and opposite reaction.

This law is exemplified by what happens if we step off a boat onto the bank of a lake: as we move in the direction of the shore, the boat tends to move in the opposite direction (leaving us facedown in the water, if we aren't careful!).

Here are the 3 laws my opinion of the1. first is once you star a ball rolling say down a hill the ball will keep rolling unless something like gravel or a brick or someone stopping it with their hand. So that would meen the ball would keep rolling and would stay in motion if it were not interrupted by a change in the enviroment. 2nd law is hard for me, maybe it is this, An object moving at a certain speed will continue at that speed unless additional force is applied or the enviroment around it changes.
3. I think this is totally true, like I drop a ball from up high and it bounces high. I think it also applies for everyday forces around us like the light turns green and you go. for every action there is an opposite and quite equal reaction. I am sure you can think of alot of examples for that one, like you twist something tight and it either untwists fast or snaps really hard, always a reaction.

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Answer 6

1st law:law of inertia
a body at rest or moving with uniform velocity stays at rest or continues to move with uniform velocity unless an external force acts on it to make it behave diffferenltly
2nd law:
the momentum of a body is directly proportional to the applied force and takes place in the direction in which the force acts
3rd law:
to every action there is an equal but oppposite reaction

Answer 7

body at rest tends to stay at rest, body in motion tends to stay in motion, every action has an equal and opposite reaction

Answer 8

a body in wont accelerate until a external force acts on it.
a body resists the change in it's state by the virtue of inertia.
every action has a oposite and equal reaction

Answer 9

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Answer 10

You can't get much more simple than they already are, so I don't know why you have to ask. You must be home schooled, or VERY lazy person.