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The angular momentum of a rotating wheel points along the axis of rotation.

The angular momentum of a rotating wheel points along the axis of rotation. Torque is a vector. A tangential push on the spinning wheel produces a torque which causes the angular momentum to increase. Gravity produces a torque which is perpendicular to the angular momentum.

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The angular momentum of a rotating wheel points along the axis of rotation.

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Presentation Transcript

  1. The angular momentum of a rotating wheel points along the axis of rotation.

  2. Torque is a vector

  3. A tangential push on the spinning wheel produces a torque which causes the angular momentum to increase

  4. Gravity produces a torque which is perpendicular to the angular momentum

  5. The change in angular momentum causes the gyroscope to precess

  6. A bicycle wheel is hanging from a rope on one end of its axle, as shown. A person is holding the other side of the axle. What happens to the wheel when the person lets go? How about now?

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