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Chapter 4(Newton)

# Chapter 4(Newton) - Some Basic Physics Motion Position...

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Some Basic Physics

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Motion Position Velocity Rate of change of position A vector Acceleration Rate of change of velocity A vector
Newton Between 1665 and 1667 (He was 22 in 1665.) Invented calculus Newton’s Laws Basis of all physics until Einstein. Law of Universal Gravitation

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Newton’s Laws of Motion #1 A body remains at rest, or moves with constant velocity unless acted upon by an outside force #2 The change in a body’s velocity due to an applied force is in the same direction as the force and proportional to it, but is inversely proportional to the body’s mass. F = m a #3 For every applied force, a force of equal size but opposite direction arises.
Weight One example of a force. W=mg g=acceleration due to gravity at Earth’s surface = 9.8 m/s/s W=mg=ma….g=a What does Newton’s Third Law say about this? Your weight is proportional to your mass

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Gravity Take a look around you….in our everyday experience we see gravity acting on all objects.
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