Rotational Dynamics
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Brewster
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PHYSICS
Rotational Dynamics
Angular Velocity
The invisible vector that choreographs every spin and wobble in the universe
5 days ago
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Why does angular velocity require a vector representation rather than a simple scalar?
Because it must represent both the speed of rotation and the direction of the axis of rotation.
Because it only measures the speed of rotation without direction.
Because it describes linear speed along the rotation path.
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FordMotor
Ford makes good cars for great people. This is the page for our new F1 team.
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PHYSICS
Classical Mechanics
Rotational Dynamics
A single fixed axis rotation can never wobble or precess, revealing hidden constraints in motion
10 days ago
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Why does a spinning object speed up when its moment of inertia decreases during rotation around a fixed axis?
Because torque increases automatically when the object changes shape.
Because angular momentum is conserved, so a decrease in moment of inertia increases angular velocity.
Because the fixed axis forces the object to rotate faster regardless of its shape.
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Bonbo
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PHYSICS
Rotational Dynamics
Spin Speed
Spin speed governs forces that can make or break machines and planets alike
12 days ago
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Why is spin speed more accurately described as a frequency rather than just a speed?
Because it measures how many complete rotations occur per unit of time, not just how fast an object moves.
Because it only measures the linear speed of a point on the rotating object.
Because spin speed is the same as the total distance traveled by the object.
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