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Solved: (a) Calculate the rotational kinetic energy of

College Physics | 1st Edition | ISBN: 9781938168000 | Authors: Paul Peter Urone, Roger Hinrichs ISBN: 9781938168000 42

Solution for problem 23PE Chapter 10

College Physics | 1st Edition

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

College Physics | 1st Edition

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Problem 23PE

(a) Calculate the rotational kinetic energy of Earth on its axis. (b) What is the rotational kinetic energy of Earth in its orbit around the Sun?

Step-by-Step Solution:

Solution 23 PE

Step 1 of 4:

In this question, we need to find rotational kinetic energy of Earth on its axis

In part (b) we need to find the rotational kinetic energy of Earth around the Sun

Part (a)

Step 2 of 4:

The rotational kinetic energy is given by

                        

Here

However, we have

                        

 for a sphere

Mass of earth,

Radius of earth,

Thus we can write rotational kinetic energy as

                        

Substituting values we get

Thus we have rotational kinetic energy of Earth along its axis as

Part (b)

Step 3 of 4

Chapter 10, Problem 23PE is Solved
Step 4 of 4

Textbook: College Physics
Edition: 1
Author: Paul Peter Urone, Roger Hinrichs
ISBN: 9781938168000

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