(a) Calculate Earth’s average speed relative to the Sun.
(b) What is its average velocity over a period of one year?
SOLUTION:
a) The average speed of the earth is equal to the distance traveled divided by the time.
b) After a period of 1 year, the planet Earth has already returned to its original position with respect to the Sun. This means that we do not have any displacement. Therefore, the average velocity is zero.
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