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Angular Displacement
The angle at which a body rotates around a center or axis of rotation, measured in radians, with counterclockwise as positive and clockwise as negative.
Average Angular Velocity
The average rate of change of angular displacement over elapsed time, a vector quantity measured in rad/s.
Average Angular Acceleration
The average rate of change of angular velocity over elapsed time, a vector quantity measured in rad/s^2.
Equations of Rotational Kinematics
Set of equations describing rotational motion with constant angular acceleration, involving angular displacement, velocity, acceleration, time, and initial/final angular velocity.
Tangential Velocity
The linear speed of an object moving along a circular path, calculated as the product of radius and angular velocity, measured in m/s.
Tangential Acceleration
The rate of change of tangential speed, calculated as the product of radius and angular acceleration, measured in m/s^2.
Centripetal Acceleration
The acceleration directed towards the center of a circular path, calculated as the product of radius and angular velocity squared, measured in m/s^2.
Rolling Motion
The concept that the tangential speed of a point on the outer edge of a rolling tire is equal to the speed of the car over the ground.
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