Phys205A_Lecture13

# Physics for Scientists & Engineers with Modern Physics (4th Edition)

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Chapter 5 Forces of Friction Lecture 13

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Multiple Objects, - Atwood’s Machine Conceptualize: Forces acting on the objects: z Tension (same for both objects, one string) z Gravitational force z Each object has the same acceleration since they are connected Categorize: two particles under a net force Analyze: z Draw the free-body diagrams z Apply Newton’s Laws z Solve for the unknown(s) Find tension and acceleration: Finalize: Vary the masses and observe the values of the tension and acceleration
Exploring the Atwood’s Machine

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Forces of Friction z When an object is in motion on a surface or through a viscous medium, there will be a resistance to the motion z This is due to the interactions between the object and its environment z This resistance is called the force of friction Friction is proportional to the normal force f= μn μ is the coefficient of friction http://www.plymouth.k12.wi.us
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Phys205A_Lecture13 - Lecture 13 Chapter 5 Forces of...

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