what is Newton third law of motion?

Answer 1

Newton's Laws of Motion are three physical laws which provide relationships between the forces acting on a body and the motion of the body, first formulated by Sir Isaac Newton. Newton's laws were first published in his work Philosophiae Naturalis Principia Mathematica (1687). The laws form the basis for classical mechanics. Newton used them to explain many results concerning the motion of physical objects. In the third volume of the text, he showed that the laws of motion, combined with his law of universal gravitation, explained Kepler's laws of planetary motion.

Newton's Laws of Motion describe only the motion of a body as a whole and are valid only for motions relative to a reference frame. The following are brief modern formulations of Newton's three laws of motion:

First law
An object at rest tends to stay in rest and an object in motion tends to stay in motion in a straight line at constant speed unless acted upon by an outside force.
Second law
If one object has more inertia than another, more force is required to give that object the same acceleration as the first.
Third law
To every action (force applied) there is an equal but opposite reaction (equal force applied in the opposite direction).
Another way of stating Newton's third law, an interaction between two objects, is that, if object A exerts a force on object B, object B will exert the same magnitude force on A, but in the opposite direction.

Answer 2

It is: "To every action there is an equal and opposite reaction."
ex. We push the ground backwards when we have to jump forward, the force that actually makes us move forward is the reaction force offered by the ground. A swimmer pushes the water backwards with his hands and feet to move in the forward direction. It's the reaction offered by the water that pushes the swimmer forward. etc.
To exert some force on a body, another body must exist, the latter exerts a force on the former, also the former exerts force on the latter. These 2 forces are in opposite directions, equal in magnitude BUT as the 2 forces are acting on different bodies, they cannot nullify each other. Also the state of a body depends on the resultant force that is acting on it and not upon the forces the body exerts on other bodies.

Answer 3

It says that when a force is exerted on an object, the same force is exerted with the same magnitude but in opposite direction, on the body that exerted the initial force.

Take the example of 2 ice-skaters in a figure skates competition. When a skater pushes another stationary skater, he/she will also be pushed back. The force which pushes him/her back is said to be equal to the force he/she applied when pushing her partner.

Hope this helps=)

Answer 4

i dont know

Answer 5

for every action, there is an equal but opposite reaction.

like when you punch a wall..
it's like the wall is punching you too, as hard as you hit it...