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PES 105 Gravity and Laws of Motion

# PES 105 Gravity and Laws of Motion - PES 105 Gravity and...

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1/15/12 PES 105 Gravity and Laws of Motion 1/5 www.uccs.edu/Atchriste/courses/PES105/105lectures/105lecgravity.html PES 105 Fall 2001 PUeYioXV LecWXUe General Astronom\ I Ne[W LecWXUe Lecture Notes: Gravit\ and the Laws of Motion We[W: ChapWeU 1 SecWionV 1.4 and 1.5, OYeUYieZ 2, ChapWeU 2 SecWionV 2.1 - 2.9 Histor\: Newton and Gravit\ 1670 . .................. England IVaac NeZWon Recogni]ed WhaW moWion of a ball WhUoZn on EaUWh and moWion of planeWV aUe goYeUned b\ SAME laZV of ph\VicV. Definitions: MaVV - amoXnW of maWWeU in objecW ZeighW - foUce of gUaYiW\ on objecW YolXme - amoXnW of Vpace objecW occXpieV denViW\ - amoXnW of maVV in a YolXme acceleUaWion - change in Vpeed or direction , inclXdeV Vpeeding Xp oU VloZing doZn See figure 2.5 for the definition of acceleration. Here is a link to the figure. Here is a more detailed discussion of acceleration (and velocit\ and force). ZeighW YV. maVV gUaYiW\ of moon iV leVV Whan EaUWh => aVWUonaXWV on moon haYe Vame maVV, bXW Zeigh leVV

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1/15/12 PES 105 Gravity and Laws of Motion 2/5 www.uccs.edu/Atchriste/courses/PES105/105lectures/105lecgravity.html NeZWon'V LaZV of MoWion 1. An object remains at rest, or continues moving in a straight line with constant speed, unless acted on b\ a force. This link has a more detailed description of the first law with pictures and animations. 2. The abilit\ of a force to change the motion of an object depends on the object's mass. Appl\ the same force to a piano or chair .
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PES 105 Gravity and Laws of Motion - PES 105 Gravity and...

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