Tangential Acceleration

Sine and Cosine – Definitions and Properites

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Menu (linked Index) Sine and Cosine – Definitions and Properties Last Update: December 23, 2025 Introduction History Etymology Unit Circle Trigonometry Sine and Cosine Wave From the Unit Circle Sinusoid Waveform General Characteristics Circular Motion Parameters Phase Angle Expression Using Rotational Kinematics General Equations for Instantaneous AC Voltage and Current Voltage and Current Waveform Characteristics […]

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Rotational Motion Variables

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Menu (linked Index) Rotational Motion Variables Last Update: October 28, 2025 Introduction Angle Displacement and Radian Definition Angular Velocity ω Angular Acceleration α Rotational Motion Vectors Kinematic Equations (Linear, Rotational) Polar vs Axial Vectors Introduction This post addresses rotational (circular) motion and the key variables describing it. We are probably familiar with linear movement described

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