# (a) Calculate Earth’s average speed relative to the Sun.

## Problem 5PE Chapter 2

Physics: Principles with Applications | 6th Edition

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Physics: Principles with Applications | 6th Edition

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Problem 5PE

(a) Calculate Earth’s average speed relative to the Sun. (b) What is its average velocity over a period of one year?

Step-by-Step Solution:

Step-by-step solution Step 1 of 5 (a) The formula to find the average speed is, Here is the average speed, is the time taken and is the distance. Step 2 of 5 The earth completes one revolution around the sun in one complete year. Hence, the distance travel by the earth in one year is the circumference of the circular path covered by the earth around the sun. Therefore, Here is radius of the earth. Comment Step 3 of 5 Substitute for and for . Therefore, the average speed of the earth is Comment

Step 4 of 5

Step 5 of 5

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(a) Calculate Earth’s average speed relative to the Sun.

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