Using the expression
we solve the problems
1) The distance (d) = 25000 miles and the speed v = 60 miles per hour
So, it will take 14.4 days to drive around the earth.
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2) This time the distance = 239000 miles but the speed(v) is still 60 mph. Using these to find the time to drive the distance
So, it will take 166 days to drive to the moon.
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3) The distance traveled by the earth (d) = the circumference of the circular orbit = 2*pi*R
R = radius = 93000000 miles
The earth takes 365.25 days to complete a revolution.
Converting this time to hours, 1 day = 24 hours.
So 365.25 days = (356.25 days) *(24 hours / 1 day) = 8766 hours
The average speed of the earth = 66659.4 miles per hour.
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