First law
An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion will continue in motion with the same speed and in the same direction unless acted upon by an unbalanced force. This first law is often referred to as the law of inertia.
This means that objects have a natural tendency to keep on doing what they're doing. All objects resist changes in their state of motion. Without an unbalanced force, an object in motion will maintain this state of motion.
Second law
Acceleration is produced when a force acts upon a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed to accelerate the object.
The heavier the object the more force is required to move it the same distance as a lighter object.
The second law gives an exact relationship between force (f), mass (m) and acceleration (a).
F=MA
FORCE= MASS times ACCELERATION
Third law
For every action there is an equal and opposite re-action.
For every force there is a reaction force that is equal in size, but opposite in direction. That is to say that whenever an object pushes another object it gets pushed back in the opposite direction equally hard.
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