Exam#2 Study Guide

Exam#2 Study Guide - PH Y S 102 S p r in g 2 0 0 8 E x a m...

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Unformatted text preview: PH Y S 102 S p r in g 2 0 0 8 E x a m # 2 S t u d y G u id e These are the equations and instructions that will appear on the first page of the exam: D O N O T O P E N T H IS E X A M U N T IL IN S T R U C T E D T O D O S O . T H E O N L Y IT E M S Y O U M A Y U S E D U R IN G T H E E X A M A R E A W R IT IN G IN S T R U M E N T A N D C A L C U L A T O R . P L E A S E S IL E N C E A N D PUT AW AY YOUR CELL PHONE! Equations Kinematics (constant acceleration) 1 1 x = xo + vox t + a x t 2 y = yo + voy t + a y t 2 2 2 v x = vox + a x t 2 v2 = vox + 2 a x ( x − xo ) x v y = voy + a y t 2 v2 = voy + 2 a y ( y − yo ) y Projectile Motion: ax = 0 a y = −g Dynamics € ∑ Fx = ma x ∑ Fy = ma y W = mg Fspring = k Δx Fg = mg € fs ≤ µ sn fk = µ k n Gm1 m 2 FG = r2 v2 € ac = r W = F *d Wnet = ΔK 1 K = mv 2 2 U g = mgh 1 U spring = kx 2 2 p = mv Conservation Laws (Only conservative forces) € € € ΔK + ΔU total = W f ∑ pi = ∑ p f € m − m2 2 m1 Special case of elastic collision with v2i=0: v1 f = 1 v1i and v 2 f = v1i m1 + m 2 m1 + m 2 € € Constants (Nonconservative forces) ΔK + ΔU total = € 0 G = 6.67 x 10-11 Nm2/kg2 For the free-response items on this exam, you must clearly show your work, starting from € one or more of the equations above, in order to earn credit for your response. Numerical answers without any supporting work will receive zero credit, even if they are correct. Numerical answers must include units!! 
 Topics Tested on Exam Uniform Circular Motion • Analysis of situations involving centripetal acceleration • Application of centripetal force in Newton's Laws Universal Gravitation • Application of FG to orbital motion Conservation of Energy • Application of energy conservation to situations involving kinetic energy, and gravitational and spring potential energy • Application of energy conservation to situations involving frictional forces Conservation of Momentum • Application of momentum conservation to elastic and inelastic collisions • Application of energy conservation to characterize collisions Suggested Review • Multiple Choice Questions at the end of Chapters 6, 7, and 8; answers to odd-numbered questions in text • Practice HW Assignments in Mastering Physics (Chapters 6-8) • In-class questions and problems (solutions posted in D2L) ...
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This note was uploaded on 01/31/2009 for the course PHYS 102 taught by Professor Novordsky during the Spring '08 term at Arizona.

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