In the Figure,the Rotor of a Gyroscope Is a Uniform

question 104

Multiple Choice

In the figure,the rotor of a gyroscope is a uniform disk that has a radius of 13.8 cm and a moment of inertia about its axis of 4.0 × 10^-3 kg ∙ m².The length of the rotor shaft is 6.9 cm.The ball pivot at P is frictionless.At a given instant,the rotor shaft is horizontal and the rotor is rotating with an angular velocity of 90 rad/s about its axis OP,as shown.The rotor is viewed from point Q on the axis.The precessional linear velocity of point O,including the direction seen from point Q,is closest to

• A)0.054 m/s,leftward
• B)0.054 m/s,upward
• C)0.054 m/s,rightward
• D)0.11 m/s,downward
• E)0.11 m/s,rightward

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Definitions:

Pathways

Routes or courses that something takes to move or progress from one point to another, often used in reference to neural pathways in the brain.

Processes

A series of actions or steps taken to achieve a particular end.

Trichromatic Theory

A theory explaining color vision as a result of the retina containing three types of receptors that are sensitive to red, green, and blue wavelengths of light.

Opponent Process Theory

A psychological and neurological model that describes how humans perceive colors as the result of opposing responses between two sets of cones in the eyes.