10.7 Gyroscopic Effects: Vector Aspects of Angular Momentum

Right-hand rule fixing the direction of angular velocity and torque, precession of a spinning top, and Earth's own slow axial wobble.

College Physics 2e, 10.7 Gyroscopic Effects: Vector Aspects of Angular Momentum

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10.7 Exercise 2

A globe (model of the Earth) is a hollow sphere with a radius of 16 cm. By wrapping a cord around the equator of a globe and pulling on it, a person exerts a torque on the globe of 120 N • m for 1.2 s. What angular momentum does the globe have after 1.2 s?

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