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What is angular velocity omega in
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physics? Angular velocity is the rate of
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change of angular displacement of an
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object with respect to time, including
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the direction of rotation. Angular
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velocity is a vector quantity, meaning
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it has both magnitude and direction.
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The direction is given by the axis of
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rotation and can be determined using the
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right-hand rule. It describes how fast
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an object rotates and in which
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Even if the speed remains constant, a
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change in direction makes angular
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velocity important in rotational motion.
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The SI unit of angular velocity is
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radians per second rad/s. Imagine a
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spinning wheel at the top of a building.
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Not only does it rotate, but it also has
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a specific direction of rotation,
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clockwise or anti-clockwise.
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This is what angular velocity describes.
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Examples: rotation of a ceiling fan with
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direction, spinning of a wheel in a
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specific direction, Earth rotating about
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its axis, motion of rotating machinery,
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a disc rotating clockwise or
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anti-clockwise {asterisk}{asterisk}.
