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Chapter 10: Rotation

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Rotational Variables Radian Measure Angular Displacement Angular Velocity Angular Acceleration

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Constant Angular Acceleration Are angular quantities vectors? Equations of motion for constant angular acceleration.

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Kinetic Energy of Rotation (rotational inertia) (kinetic energy) System of Particles Solid Body

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Rotational Inertia

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Parallel-Axis Theorem Let h be the perpendicular distance between the given axis and a parallel axis through the center of mass. If I com is the rotational inertia of the body about the parallel axis that extends through the body’s center of mass, then the rotational inertia I about the given axis is

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Torque Line of Action Moment Arm The ability of a force F to rotate a body depends not only on its tangential component F t, but also on just how far from the pivot point the force is applied. The unit of the torque is Nm! Do no use J!

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Newton’s 2 nd Law for Rotation Radian measure Proof

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Work and Rotational Kinetic Energy Work–kinetic energy theorem Work, rotation about fixed axis Work, constant torque Power, rotation about fixed axis

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Sample Problems 10-8, 10-10, 10-11

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