(a) If we are moving at a high speed as the Earth revolves about the Sun (18.5 m/s, Example 2.3), then why don’t we generally feel this motion? (b) Similarly, we are traveling through space because of the Earth’s rotation (1000 mi/h at the equator, Confidence Exercise 2.3). We don’t generally feel this motion either, but we do easily sense it otherwise. How?
Referenec Problem Example 2.3
What is the average speed of the Earth in miles per hour as it makes one revolution about the Sun? (Consider the Earth’s orbit to be circular.)
Referenec Problem Confidence Exercise 2.3
What is the average speed in mi/h of a person at the equator as a result of the Earth’s rotation? (Take the radius of the Earth to be RE = 4000 mi.) The answers to Confidence Exercises may be found at the back of the book.
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