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# Solved: (a) Calculate the rotational kinetic energy of ISBN: 9781938168000 42

## Solution for problem 23PE Chapter 10

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

Step 4 of 4

##### ISBN: 9781938168000

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