rotary motion
Quick Summary
Rotational motion, or rotation, describes how an object changes its orientation over time. This is distinct from translation, where all points in a body move with the same velocity and acceleration. In rotational motion, a key concept is angular momentum, which quantifies an object's resistance to changes in its rotary motion. It is calculated as the product of the object's moment of inertia and its angular velocity. The conservation of angular momentum states that an object's total angular momentum remains constant unless acted upon by an external torque. This principle explains phenomena like a figure skater spinning faster when they draw their arms inward.123456
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