Question

A homogeneous wood cylinder of height h and density

p = 950 kg/m^3 when immersed in a liquid floats so that the emerging part is equal to 3⁄4 h. Calculate the density of the liquid.

Answer 1

$$\rho g A h=0.75\rho_w g A h\\ \rho =0.75\rho_w=0.75(950)=712.5\frac{kg}{m^3}$$