Dictionary
Newton's three laws of motion

 

Newton's first law

Every object in a state of uniform motion tends to

keep its state of motio,n unless an external force is applied to it

This can be recognized as Galileo's concept of inertia, and is therefore often called Law of inertia

 

The second law of motion:

The relation between the mass m, the

acceleration and the force applied to a body is:

The basic concept of this second law is the determination of how much velocities change when forces are applied. This is the most powerful of Newton's laws, allowing quantitative calculations of dynamics.

 

Newton's third law

For every action there is an equal and opposite reaction