The photo shows a high-wire walker striding confidently along a steel cable stretched nearly half a kilometer above the bottom of a gorge in the Grand Canyon. If he tips slightly to the side, a gravitational torque will start to rotate his body even farther—which is clearly not good. To help him balance, he carries a long, heavy pole. This increases the moment of inertia, which results in a smaller angular acceleration, giving him more time to recover his balance.Model the man’s body as a 1.8-m-long, 88 kg, uniform rod. The pole is 9.1 m long, with a mass of 20 kg. What is the moment of inertia of his body? Of the pole?

College Physics
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ISBN:9781305952300
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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The photo shows a high-wire walker striding confidently along a steel cable stretched nearly half a kilometer above the bottom of a gorge in the Grand Canyon. If he tips slightly to the side, a gravitational torque will start to rotate his body even farther—which is clearly not good. To help him balance, he carries a long, heavy pole. This increases the moment of inertia, which results in a smaller angular acceleration, giving him more time to recover his balance.
Model the man’s body as a 1.8-m-long, 88 kg, uniform rod. The pole is 9.1 m long, with a mass of 20 kg. What is the moment of inertia of his body? Of the pole?

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