A mountain-climber of mass 80 kg ponders the idea
Chapter 5, Problem 62(choose chapter or problem)
A mountain-climber of mass 80 kg ponders the idea ofattaching a helium-filled balloon to himself to effectivelyreduce his weight by 25% when he climbs. He wonderswhat the approximate size of such a balloon would be.Hearing of your physics skills, he asks you. Share withhim your calculations that show the volume of the balloonshould be about 17 m3 (slightly more than 3 m indiameter for a spherical balloon).
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