PHYS 2211K Week 6 Lecture Notes
PHYS 2211K Week 6 Lecture Notes Phys 2211K
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This 1 page Class Notes was uploaded by Kemjika Echebelem on Friday October 2, 2015. The Class Notes belongs to Phys 2211K at Georgia State University taught by Yohannes Abate in Fall 2015. Since its upload, it has received 71 views. For similar materials see Principles of Physics I in Physics 2 at Georgia State University.
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Date Created: 10/02/15
PHYSICS 2211K WEEK 6 NOTES DAY 11 09292015 amp 10012015 Chapter 5 Review Forces amp Motion 0 Friction 2 Types 0 Static Friction Frictional force keeping an object from moving an object remains at rest as long as I fsltfs maX f HSFN I us coefficient of static friction FN Normal Force 0 Kinetic Friction Frictional force present when object is moving I fk HkFN I Frictional force is opposite to the direction of velocitymotion I pk lt pg This is always true 0 Rolling Friction Involves an object moving with wheels or anything that rolls I fR HRFN 39 HR lt Mk lt Us Chapter 6 Dynamics I Motion Along a Line o Kinematics is the study of motion regardless of the forces 0 Dynamics is the study of motion A the forces that cause it 0 MOST IMPORTANT EQUATION TO REMEMBER FOR DYNAMICS AND ALL OF PHYSICS Newton s Second Law I F ma F force m mass a acceleration o Gravitational Force is defined as an attractive long range force between 2 objects 0 All masses in the universe are attracted to each other 0 1 distance between two objects G gravitational constant 667 E ll Nm2kg 2 Mass 1 Mass 2 M M M1 M2 1 2 T T F G 2 F2 on 1 F1 on 2 r 0 If you set the equations for weight F M1g and gravitational force F GM1M2r2 equal to each other calling M1 the mass of any object M2 the mass of the earth and CC 77 r the radius of the earth you can solve for g the acceleration due to gravity g GMEarthREartz
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