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Motion around a fixed point |
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movement of an object from point to point |
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object at rest or rotation will stay in that state unless acted on by outside torque |
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how fast the angular position changes |
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Newtons first law of rotational motion |
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Definition
an object not wobbling and has no outside torque will rorate with constant angular velocity about a fixed axis |
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Definition
a force that results in angular acceleration |
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how quickly angular velocity changes |
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newtons second law of rotational motion |
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Definition
torque=rotational mass x angular acceleration |
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distance from axis of rotation to the point of the force |
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Definition
all planets move in elliptical orbits, with the sun at one focus of the ellipse |
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A line stretching from the sun to a planet sweeps out equal areas in equal times. |
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the square of a planet's orbital period is proportional to the cube of that planet's mean distance from the sun |
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