# Newton's Three Laws Of Gravity Essay

967 words - 4 pages

Newton’s 3 Laws of Motion

One of the most influential and top contributors to the world of physics to me is Sir Isaac Newton. Father of modern science, Sir Isaac Newton was born on January 4th, 1643 in Woolsthorpe-by-Colsterworth, United Kingdom and died on March 31st 1727, Kensington, London, United Kingdom. He was an English physicist and mathematician who formulated three laws of motion that help explain some of the very important principles of physics. Some of Newton’s laws could only be proved under certain conditions; but actual observation and trial experiments assured the validity of his work. According to Isaac Newton’s laws he tells us how ...view middle of the document...

That is the reason why seat belts are in virtually every vehicle, so that the passenger wouldn’t go flying through the windshield if you where to make a sudden stop or hit the breaks quickly. Depending on the mass of the passenger and how fast the car was stopped would determine how far that passenger would fly out the windshield. This would be an example of Newton’s 2nd law of motion.

The Second Law of Isaac Newton’s Laws of motion states that the larger the object is the less acceleration there would be, as to the smaller the object is, the more acceleration there will be. This is because of the formula Force = Mass X Acceleration (Force equals mass times acceleration). In retrospect the more mass an object has and the more force the object has, the more acceleration it would have. For example if you were to roll two different sized balls, a large sized ball and a small sized ball with the same force, both balls would have a different acceleration outcome. The largest massed ball with a lesser acceleration then the smaller sized ball rolled. Newton states that mass of an object will change its state of motion only if a force is exerted upon it and the relationship is F=ma, where both the Force and Acceleration are vector quantities. If the mass of an object is at rest and you would like it to move, you need to apply a force in the direction of the desired motion. Now if the object is already moving and you would like to either make it move faster or would like to change its direction in motion, a force would have to be applied in order to change its motion.

The Third Law of Isaac Newton’s laws...

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