Question
Newton's Law of Gravitation can be used to show that if an object weighs w pounds on the surface of the earth, then its
weight at a distance x from the center of the earth is W(x) = WR (for x > R), where R = 3960 miles is the radius of
the earth.
Estimate the altitude at which a 140-lb pilot would weigh 139.5 lb.
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Newton's Law of Gravitation can be used to show that if an object weighs w pounds on the surface of the earth, then its weight at a distance x from the center of the earth is W(x) = WR (for x > R), where R = 3960 miles is the radius of the earth. Estimate the altitude at which a 140-lb pilot would weigh 139.5 lb.

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