A block of wood is floating in the water with 80% of the block submerged. The density of the wood is A) 800 kg/m³. B) 900 kg/m³. C) 1000 kg/m³. D) 1100 kg/m³.

Question

Quizplus · Accepted Answer

The density of the wood is equal to the density of the fluid (water) times the fraction of the volume submerged. Since water has a density of 1000 kg/m^3 and 80% of the wood is submerged, the density of the wood is 0.8 * 1000 kg/m^3 = 800 kg/m^3.

A Block of Wood Is Floating in the Water with 80