Newton's Law of Motion

Using these three laws and Kepler's laws of planetary motion, Newton explained the motion of the planets around the sun as being due to the inverse square law of gravity, where the force between two masses is inversely proportional to the square of the distance between them and proportional to the product of the two masses. So when a planet is closer to the sun, it will feel a stronger force accelerating it and hence will travel faster. Newton claimed that this inverse square law (law of gravity) is universal, in that it applies to any mass of material in the universe, whether it be an apple falling to the ground or a planet orbiting the sun. This, for its time, was a revolutionary idea. Isaac Newton was one of the world's greatest scientists. By bringing together physical insight with an excellent ability to express his ideas mathematically, he laid the foundations for modern scientific thought. His theories and ideas still live on today three centuries later. Isaac Newton died in 1727 aged 85 and is buried in Westminster Abbey.

Laws of motion

In later studies Isaac developed his theory of the three laws of motion. Isaac's three laws of motion underline all interactions of force, matter, and motion except those involving relativistic andquantum effects.

Isaac's first law of motion is known as Inertia, which states that any object that is at rest wants to stay at rest unless is acted upon by an unbalanced force.

Isaac's second law of motion establishes a relationship between the unbalanced force applied to an object and the resultant acceleration of the object. This relationship between the unbalanced force acting on an object produces an acceleration that is in the direction of the force, directly proportional to the force, and inversely proportional to the mass of an object. Force equals mass times acceleration, or F=ma, stating a given force will accelerate an object of small mass more
rapidly that a larger mass object.

Isaac's third law is the action reaction force, gives reason that a force will be hit by a force as strong as the object delivers then give off that force and be struck by it again.

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