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Ch 09: Rotation of Rigid Bodies
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All textbooksYoung & Freedman Calc 14th EditionCh 09: Rotation of Rigid BodiesProblem 9

Chapter 9, Problem 9

You are a project manager for a manufacturing company. One of the machine parts on the assembly line is a thin, uniform rod that is 60.0 cm long and has mass 0.400 kg. (a) What is the moment of inertia of this rod for an axis at its center, perpendicular to the rod?

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Welcome back everybody. We have a child's toy that is a long thin uniform rod that rotates about the center. We are told that its mass is .5 kg and that its length is 100 cm or one m. We are asked to find the moment of inertia of this thin rod when rotated about that center point right here. But we have a formula here that says the moment of inertia is 1 12 times the mass times the length squared. So let's go ahead and plug in our values. We have won 12 times our mass of 120.5 times our length of one Squared, which is equal to 0. kilograms meters squared, corresponding to our final answer. Choice of D. Thank you all so much for watching. Hope this video helped. We will see you all in the next one.
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