main

prev        

Statement of a problem № 2645

        next    

A foam plastic (rp=0.58 g/cm3) is to be used as a life preserver. What volume of plastic must be used if it is to keep 20 percent (by volume) of an 80-kg man above water in a lake? The average density of the man is 1.04 g/cm3.

Solution:
A foam plastic (rp=0.58 g/cm3) is to be used as a life preserver. What volume of

New search. (Also 5349 free access solutions)