Question

a block of wood floats on still oil of relative density 1.5 such that the exactly half of its volume is above the surface of oil relative density of this wood must be

Please help​

Answer 1

Answer:

ρ_w = 0.75

Explanation:

Let the densities of wood and oil be ρ_w and ρ_oil and A and L be cross section area and Length of the block

According to question

ρ_w×A×L×g= ρ_oil×A/2×L×g

ρ_w= ρ_oil/2

= 1.5/2= 0.75

therefore relative density of this wood ρ_w = 0.75