axis of rotation

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Earth's axis of rotation

rotation around a fixed axis

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axis of rotation

physics and mathematics

Learn about this topic in these articles:

rotational motion

In mechanics: Rotation about a fixed axis
Take the axis of rotation to be the z-axis. A vector in the x-y plane from the axis to a bit of mass fixed in the body makes an angle θ with respect to the x-axis. If the body is rotating, θ changes with time, and the…
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