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Unformatted text preview: Solving Problems with Newtons Laws: FreeBody Diagrams Applications Involving Tension, Friction, Inclines Kinematics of Circular Motion Dynamics of Circular Motion Problem Solving A General Approach Units of Chapter 5 Summary of Chapter 4 Newtons first law: If the net force on an object is zero, it will remain either at rest or moving in a straight line at constant speed Newtons second law: Newtons third law: Freebody diagrams are essential for problem solving Weight is the gravitational force on an object Normal force on an object 5.1 Solving Problems with Newtons Laws FreeBody Diagrams 1. Draw a sketch . 2. For one object, draw a freebody diagram , showing all the forces acting on the object. Make the magnitudes and directions as accurate as you can. Label each force. If there are multiple objects, draw a separate diagram for each one. 3. Resolve vectors into components. 4. Apply Newtons second law to each component. 5. Solve. 5.1 Solving Problems with Newtons Laws FreeBody Diagrams When a cord or rope pulls on an object, it is said to be under tension , and the force it exerts is called a tension force . 5.2 Applications Involving Friction, Inclines On a microscopic scale, most surfaces are rough. The exact details are not yet known, but the force can be modeled in a simple...
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This note was uploaded on 02/25/2012 for the course PHYSICS 1903 taught by Professor Nash during the Spring '10 term at The University of Texas at San Antonio San Antonio.
 Spring '10
 Nash
 Physics, Circular Motion, Friction

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