Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Newton’s Laws of Motion The Man Behind the Laws His mom wanted him to be a farmer. He was motivated at school by trying to be smarter than a bully. His college closed for a while because of the plague, and, while on break, discovered and wrote the law of gravity. He discovered calculus and even invented the reflective telescope (he’d also stare at the sun until he would lose his vision). There really was an apple tree—but the apple probably didn’t hit him in the head. He wondered why the apple always fell in a straight line and applied the idea to the moon The 3 Laws The law of inertia The law of acceleration The law of equal and opposite forces The laws are universal. Apply to planets and peas First Law: The law of inertia An object at rest remains at rest, and an object in motion remains in motion at a constant speed and in a straight line unless acted on by an unbalanced force Friction is an unbalanced force Inertia means resisting change in motion Second Law: The law of acceleration The acceleration of an object depends on the object’s mass and the force applied to it A=f/m Explains why objects fall with same acceleration (10N=1kg) F=ma Third Law: Equal and Opposite Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first Forces act in pairs Action and reaction forces act on different objects The Laws at Work