Posted by Anonymous on Friday, November 4, 2011 at 10:45am.
If a person has a weight of 145 lb at sea level, by how much is their weight reduced when flying on an airplane at an altitude of 10700 m?

physics  drwls, Friday, November 4, 2011 at 11:21am
Earth radius = 6371 km
airplane altitude = 10.7 km
Weight at altitude =
145 lb*(6371/6381.7)^2
= 144.51 lb
The reduction is 0.49 lb
Note: Yoy do not have to convert the altitudes to feet or miles, because we only needed to use a ratio of distances from the center of the earth. Ratios are dimensionless.
Answer This Question
Related Questions
 earth  If a person has a weight of 145 lb at sea level, by how much is their ...
 physics  The mass of 1 cubic meter of air at sea level is about 1.3kg. Hoe much...
 physics  The mass of 1 cubic meter of air at sea level is about 1.3kg. Hoe much...
 maths  Data were collected on the differences in weight gains of 12 people one ...
 math  1. Many people know that the weight of an object varies on different ...
 ALGEBRA  1. Many people know that the weight of an object varies on different ...
 Math  1. Many people know that the weight of an object varies on different ...
 Math  1. Many people know that the weight of an object varies on different ...
 Algebra  1. Many people know that the weight of an object varies on different ...
 physics  Which is true as one gets closer to the center of the earth? a. The ...
More Related Questions