chapter08-web1

chapter08-web1 - Chapter 8 Rotational Equilibrium and...

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1 Chapter 8 Rotational Equilibrium and Rotational Dynamics 1. Torque 2. Torque and Equilibrium 3. Center of Mass and Center of Gravity 4. Torque and angular acceleration 5. Rotational Kinetic energy 6. Angular momentum 7. Conservation of angular momentum

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2 Torque s What is torque? s How do I calculate it? s What are its SI units? s How do is compare to force? s How do I find the direction of torque? s How do I add two or more torques?
3 Torque s But wait, what does the torque equation really mean?

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4 Lever Arm s What is a lever arm? s How does it help?
5 Right Hand Rule s Point the fingers in the direction of the position vector s Curl the fingers toward the force vector s The thumb points in the direction of the torque

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6 Right Hand Rule 1. A fishing pole is 2.00 m long and inclined to the horizontal at an angle of 20.0° (Fig. P8.6). What is the torque exerted by the fish about an axis perpendicular to the page and passing through the hand of the person holding the pole?
7 Torque and Equilibrium s

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8 Example - Equilibrium 1. A uniform horizontal 300-N beam, 5.00 m long, is attached to a wall by a pin connection that allows the beam to rotate.
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This note was uploaded on 01/16/2012 for the course PHYSICS 104 taught by Professor Shaukatgoderya during the Winter '12 term at Tarleton.

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chapter08-web1 - Chapter 8 Rotational Equilibrium and...

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