19. Two boys masses m1 = 20 kg and m2 = 25 kg skate on the ice. Determine minimum area Smin floes that can keep them both, if the ice thickness h = 0,4 m. The density of ice ρ = 0,9 g / cm3, the density of water ρ1 = 1 g / cm3.
Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)