Question 17
Density and UpthrustA uniform cylindrical block of wood floats in water with one-third of its height above the water level. In a liquid of relative density 0.8, what fraction of its height will be above the liquid level?
- A.1/6
- B.1/5
- C.1/3
- D.4/5
- E.5/6.
Show the answer and explanation
Answer: A (1/6)
Explanation
In water ⅔ is submerged, so the wood's relative density is ⅔. In the liquid the submerged fraction is (⅔)/0.8 = 5/6, leaving 1/6 above the surface.