isaac newton contributes:
three laws of motion:
the law of inertia, law acceleration and law of action-reaction...
law of inertia states that an object at rest will remain at rest, an object in motion will remain in motion except upon acted by an unbalance force.
law of acceleration states that the force is directly proportional with the product of mass and acceleration:
F=ma ; the greater the force the greater the acceleration
the lesser the mass the greater the acceleration
the lesser the mass the lesser the force
the third law of motion or law of interaction states that in every action there is always an exact but opposite reaction...