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A man weighs 900N on the surface of the earth. Compute his weight in an aeroplane flying at an elevation of 9000m.
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A man weighs 900N on the surface of the earth. Compute his weight in an aeroplane flying at an elevation of 9000m.

User Michael Lukin
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1 Answer

6 votes

Answer:

90000N

Step-by-step explanation:

Using gravitational law, F = G(m1)(m2)/r^2, where m1 is the mass of the earth = 5.9742x10^24kg, m2= mass of the man = 900/9.81 = 91.74kg, the r is the distance between the man and the center of the air and it is equal to (6378km+9000m = 6387km), this computation is almost equal to the answer when the solution you use is ratio and proportion.

User Sergeyne
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