Primarily focusing on Sir Isaac Newton, he was a famous mathematician and physicist. Isaac Newton is most known for his discovery of gravity. There is a theory that one day Newton discovered gravity when he saw a falling apple. Supposedly, when he was observing the apple …show more content…
Another observation that Newton had conducted was that the moon would move away from the earth in a straight line tangent to its orbit. He knew that there was a force that was preventing the moon from falling towards the earth. Newton had then concluded this invisible force to be called “gravity.” Newton had determined that gravitational forces exist between all objects. After all the observations he made, Newton developed what are now known as the three laws of motion. The first law covers the definition of inertia. Inertia focuses on how an object will remain in motion or at rest in a straight line unless forced to change by the addition of an external force. Objects in motion will stay in motion, and objects at rest will stay at rest. The only time that an object should move is if there were an outside force. Moving on to the second law, which explains how the acceleration of an object can change when an additional force is utilized. The second law directly states that the force needed to accelerate an object equals the mass of the object multiplied by its velocity.