Newton's laws of motion

Newton's First law:

An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.This law is often called "the law of inertia".

Newton's Second law:

Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).It can be expressed as a mathematical equation:
                                                                                                         F=MA

Newton's Third law:

For every action there is an equal and opposite re-action.

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