This post evaluates the speed of an object going around the sun assuming a circular orbit.
Question: An object travels in a circle around the
sun. The radius of the circle is 93
million miles. It takes 365 ¼ days for
the object to make one complete revolution around the sun. What is the average speed in miles per hour
for this object?
Answer: The distance traveled is the circumference of
the circle, which is
2 x 3.1416 x
93,000,000
or 584,337,600 miles.
(Note to self. Remember to multiply by 2.)
(Note to self. Remember to multiply by 2.)
The number of hours in 365 ¼ days is 8,766.
The average speed in miles per hour is (585,337,600)/(8766) or 66,661 miles per hour.
Note: The earth is 93 million miles from the sun
but I do not know the exact nature of its orbit. Does it travel in a circle or ellipse? I am clueless. If science students wants to create more
questions of this type I will publish guest posts.
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