Question
(a) A 75.0-kg man floats in freshwater with 3.00% of his volume above water when his lungs are empty, and 5.00% of his volume above water when his lungs are full. Calculate the volume of air he inhales—called his lung capacity—in liters. (b) Does this lung volume seem reasonable?
1. $1.63 \textrm{ L}$
2. This is a bit less than the volume of a milk jug, so yes, it is reasonable.
Solution Video