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Physics for Scientists and Engineers

by: Marjorie Hahn

Physics for Scientists and Engineers PHYSICS 7A

Marketplace > University of California - Berkeley > Physics 2 > PHYSICS 7A > Physics for Scientists and Engineers
Marjorie Hahn

GPA 3.95


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Class Notes
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This 1 page Class Notes was uploaded by Marjorie Hahn on Thursday October 22, 2015. The Class Notes belongs to PHYSICS 7A at University of California - Berkeley taught by Staff in Fall. Since its upload, it has received 46 views. For similar materials see /class/226699/physics-7a-university-of-california-berkeley in Physics 2 at University of California - Berkeley.


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Date Created: 10/22/15
Jessica s Cheatsheet Physics 7A Midterm 1 duct A B lAHBlcose A Cross Produ x B lAllBlsime Example 39A 1i2j73k 9 6k 9 r cos79 cose AB142 75 93 tan7 9 flame o 724 Ax B 2o77375i73471oj 175724k sin2e c0 9 sin29 2sinecose 731i 718j 713k l 1725in20 39 39 Law of Cosines a2 b2 ct 2bc cose products are vector quantities Chapter 2 AK X2 l i Ax dz Av average velocity v A2 instantaneous velocity vt 31 Q 1 average acceleration a E instantaneous acceleration a iv TV I a dueto gravity near the surface ofthe earth g 98 msz d a t I uuimuuu LucclcL curve This area is the integral ofvelocity over time from some initial time t to some nal time t2 andis a 39 39 t Avjodt i written A jm similary i 17D Motion 39 n 39 39 39 39 39 39 AX a m Vllvnlart v2 Approach To Motion Problems Example of your favorite motion problem at is oin on 2 Choose a coordinate system and origin 3 Breakdown all given vectors into your chosen sy em Write down the information you know ie initallinal position velocity acceleration 5 Based on what you are given and what you want to find choose a motion equation give you a sol 39on uh 5 Remember to break up motion into the different components ie x and Remember that accel eration due to gravity only acts in theydirection Chapter 3 IfA makes an w w 39 A Acose and Ay Asine Chapter 4 Newton s Laws 1 39 439 39 quot in zoom hrmm 39 L39 39 L39 also calledthe resultant force is the vector sum of all the forces acting on it Fm 2F ma 39 39 39 If hi M A site force is exertedby objectB on object A FAVE ergA Page 1


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