Lecture6

Lecture6 - Lecture 6 Gravity, 2-dimensions Quiz This...

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Unformatted text preview: Lecture 6 Gravity, 2-dimensions Quiz This Friday! Covers Chapter 1 and 2 only! Things to bring 1. #2 Pencil 2. Scantron (red half-sheet) 3. 3x5 Index card cheat sheet 4. ScientiFc calculator graphing ok, No cell phone calculator! Last Time Kinematic equations Falling Bodies Objects moving under the infuence oF only gravity are said to be in Free Fall. BeFore 1600, it was widely believed that heavier bodies Fell Faster than lighter bodies. People at the time believed speed oF the Fall oF the object is proportional to how heavy it is. Galileo was the rst to predict that Falling bodies on earth would Fall with a distance proportional to time- squared (d~t 2 ) Galileos Test Leaning tower in Pisa Dropped two balls of equal size, but one was soap and one was lead. Both spheres reached the ground at the same time. 1971 Apollo 15 and Galileo Exp. http://www.youtube.com/watch?v=4mTsrRZEMwA Transcript of the video: http://www.hq.nasa.gov/alsj/a15/a15.clsout3.html#1671628 167:22:06 Scott: Well, in my left hand, I have a feather; in my right hand, a hammer. And I guess one of the reasons we got here today was because of a gentleman named Galileo, a long time ago, who made a rather signiFcant discovery about falling objects in gravity Felds. And we thought where would falling objects in gravity Felds....
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This note was uploaded on 01/25/2012 for the course EE ee taught by Professor E during the Spring '11 term at UCSD.

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Lecture6 - Lecture 6 Gravity, 2-dimensions Quiz This...

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