Text Reading: Giancoli, Physics - Principles with Applications, 5: 1-3
- 5.1 Circular Motion; Gravitation. Now we start putting things together. Circular motion can be described in terms of kinematics (motion). This section shows how the relationship of circular motion can be derived mathematically by understanding the relationship between centripetal and tangential velocities, and between angular acceleration and linear acceleration. The repeated motion allows us to use concepts of periods and frequency.
- 5.2 Dynamics of Uniform Circular Motion. Circular motion can also be described in terms of dynamics (forces). Centripetal force is the real force that pulls an object inward toward the center. There is no real centrifugal (outward) force.
- 5.3 A Car Rounding a Curve. Study the diagrams of forces acting on a car on a "flat" curve and a banked curve, and be sure you understand why banking increases traction.
Small angle approximation for change in velocity during circular motion:
Small angle approximation for acceleration during circular motion:
Circular velocity in terms of period
Force required to keep a body moving with circular motion:
Read the following weblecture before chat: Circular Motion
The Gravitron was one of my favorite carnival rides. You can simulate the forces of the ride in Gravitron. See if you can determine the minimum coefficient of static friction required to keep an object in place.
Physics at the University of Boston.
Chat Preparation Activities
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- The chapter quiz is not yet due.
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