SOLUTION: A hot-air balloon travels round the Earth 1km above the surface, following the equator. How much further does it travel than the distance around the equator?
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Question 712665: A hot-air balloon travels round the Earth 1km above the surface, following the equator. How much further does it travel than the distance around the equator?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A hot-air balloon travels round the Earth 1km above the surface, following the equator. How much further does it travel than the distance around the equator?
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r = radius of Earth
Equator length (circumference) = 2*pi*r
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Distance balloon travels = 2*pi*(r+1) = 2*pi*r + 2pi
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Diff = 2pi km
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