# Lec08 - Assignment for Friday Do Online Exercise 05...

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Assignment for Friday Do Online Exercise 05 ("Energy" tutorial)

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Universal Laws of Motion If I have seen farther than others, it is because I have stood on the shoulders of giants.” Sir Isaac Newton (1642 – 1727) Physicist
Sir Isaac Newton (1642-1727) • Perhaps the greatest genius of all time • Invented the reflecting telescope • Invented calculus • Connected gravity and planetary forces Philosophiae Naturalis Principia Mathematica

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Objects in Motion speed – rate at which an object moves, i.e. the distance traveled per unit time [m/s; mi/hr] velocity – an object’s speed in a certain direction, e.g. “10 m/s moving east” acceleration – a change in an object’s velocity, i.e. a change in either speed or direction is an acceleration [m/s 2 ]
The Acceleration of Gravity • As objects fall, they accelerate. • The acceleration due to Earth’s gravity is 10 m/s each second, or g = 10 m/s 2 .

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## This note was uploaded on 02/01/2012 for the course PHYS 133 taught by Professor Staff during the Fall '08 term at University of Delaware.

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Lec08 - Assignment for Friday Do Online Exercise 05...

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