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Physics (Boundless)
9: Rotational Kinematics, Angular Momentum, and Energy

9: Rotational Kinematics, Angular Momentum, and Energy

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Nov 5, 2020
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- 8.8: Torque and Angular Acceleration
- 9.1: Quantities of Rotational Kinematics

Boundless
Boundless

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9.10: Conservation of Energy
Energy is conserved in rotational motion just as in translational motion.
9.1: Quantities of Rotational Kinematics
The angle of rotation is a measurement of the amount (the angle) that a figure is rotated about a fixed point— often the center of a circle.
9.2: Angular Acceleration
Constant angular acceleration describes the relationships among angular velocity, angle of rotation, and time.
9.3: Rotational Kinematics
The motion of rolling without slipping can be broken down into rotational and translational motion.
9.4: Dynamics
Rotational inertia is the tendency of a rotating object to remain rotating unless a torque is applied to it.
9.5: Rotational Kinetic Energy
The rotational kinetic energy is the kinetic energy due to the rotation of an object and is part of its total kinetic energy.
9.6: Conservation of Angular Momentum
The law of conservation of angular momentum states that when no external torque acts on an object, no change of angular momentum will occur.
9.7: Vector Nature of Rotational Kinematics
The direction of angular quantities, such as angular velocity and angular momentum, is determined by using the right hand rule.
9.8: Problem Solving
Identify the problem and solve the appropriate equation or equations for the quantity to be determined.
9.9: Linear and Rotational Quantities
The description of motion could be sometimes easier with angular quantities such as angular velocity, rotational inertia, torque, etc.

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