How many spherical 4’ diameter balloons are required to lift a 175-lb person and 25 pounds...
How many spherical 4’ diameter balloons are required to lift a
175-lb person and 25 pounds of equipment into the air at standard
sea level conditions? Assume that each balloon has a mass of 250
grams.
Barnard,
Homework Answers
first
175 lb = 79.37 kg
25 pounds = 11.34
total weight to lift is = 79.37 + 11.34 = 90.71 kg
then the weight of balloon is = 0.25 kg
90.71 = 0.25 * n
n = 362.84
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