Newton's three laws applied in life
Boat MotorThe modern gas powered boat motor works through it's use of Newton's third law of motion. Using a fan, it pushes against the water, causing the same amount of force to be applied in the opposite direction. Consequently, this moves the boat forwards, propelling it along the water.
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Rocket EnginesRocket engines, used by mankind to access the furthest reaches of space, function in accordance with Newton's third law. Using certain propellants, the engine pushes against the ground with enormous force, propelling the spacecraft connected to it up into the atmosphere.
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jet Engines
Jet engines, while differing in design from their rocket counterparts, use the same of Newton's laws, the third, to accomplish their means. Sucking in air through the turbine, the engine ignites fuel and pushes force against the air. This force, having to follow Newton's third law, also pushes in the opposite direction, propelling the plane forwards.
Golfing
In this case, the golf ball is subject to the first of newton's laws. The ball, when placed upon the ground, will stay on that spot, and not move unless acted by an unbalanced force. This unbalanced force comes in the form of a golfer, who hits the ball and sends it flying. The ball will continue flying until acted upon by an outside force once again, in this case the ground.
Firearms
Firearms, whether they be from the 1600s or the 1900s, have always used Newton's third law. By creating an explosion inside the barrel of the gun, a bullet is propelled forward, while force is also directed back at the wielder. However, as it takes more force to move a person than it does a bullet, the person stays in place, while the bullet travels out the barrel and into whatever object the gun was aimed at.
BowlingA bowling ball is subject to the first and second laws of motion. Firstly, every bowling ball is at one point in a state of rest, which it is taken out of by an outside fore, in most cases a firm hand. It then experiences motion, sailing into the air and then across the floor, experiencing friction, before hitting the pins at the end of the court. The ball is then stopped by another outside force, this time a machine. The ball is subject to the second law of motion through the fact that the ball has more force the faster it is thrown, and the heavier it weighs. This corresponds with the idea that force is equal to mass times acceleration.
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A sudden stopWhen a car hits an object at high speeds, the driver and any other passengers are liable to be thrown through the windshield. This is due to the fact that the people inside the car are experiencing the effects of Newton's first law, which states that an object in motion will stay in motion. As such, since the car has stopped so abruptly, the passengers and driver are still traveling at the speed the car was only a few moments ago. Therefore, they are flung forwards, through the windshield.
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Wrecking ballA wrecking ball operator relies on Newton's second law to get his job done. He needs to make sure that there is enough force behind the wrecking ball that it can destroy the building. With too little force, the ball will not harm the building. With too much force, the ball will cause debris to fly everywhere and possibly hit other structures. Therefore, the correct force is necessary, and is created through careful multiplication of the correct weight of ball and the speed at which the ball is going.
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BicycleA bicycle is subject to the first of Newton's laws. This can be seen when one stops pedaling while riding a bike, and notices that the bike will continue moving in absence of any activity by the rider. This will continue until the bike is acted upon by an outside force, whether that be friction or another object.
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