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Physics / College Physics 1 / Chapter 10 / Problem 11

College Physics | 1st Edition | ISBN: 9781938168000 | Authors: Paul Peter Urone, Roger Hinrichs

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Solved: Calculate the moment of inertia of a skater given

Chapter 10, Problem 11

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QUESTION: Problem 11PE

Calculate the moment of inertia of a skater given the following information. (a) The 60.0-kg skater is approximated as a cylinder that has a 0.110-m radius. (b) The skater with arms extended is approximately a cylinder that is 52.5 kg, has a 0.110-m radius, and has two 0.900-m-long arms which are 3.75 kg each and extend straight out from the cylinder like rods rotated about their ends.

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QUESTION: Problem 11PE

Calculate the moment of inertia of a skater given the following information. (a) The 60.0-kg skater is approximated as a cylinder that has a 0.110-m radius. (b) The skater with arms extended is approximately a cylinder that is 52.5 kg, has a 0.110-m radius, and has two 0.900-m-long arms which are 3.75 kg each and extend straight out from the cylinder like rods rotated about their ends.

ANSWER:

Solution

Step 1

We have to find the moment of inertia of a skate. Given mass of the skate is m=60 kg and radius of the cylinder is r=0.110m.

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