Question

The mass of a cork is 2g.What is the fraction o

f the cork is immersed when it floats in water

Answer 1

$m = 2*10^{-3}kg$

$\rho= 1*10^3\frac{kg}{m^3}$

$g\approx 10\frac{m}{s^2}$

$F_a = \rho gV_{im}=10^4V_{im}$

$F_g= mg=2*10^{-2}$

$F_g =F_a$

$10^4V_{im}=2*10^{-2}$

$V_{im}=2*10^{-6}m^3\text{The volume of a body immersed in a liquid}$

$\text{Answer: }2*10^{-6}\ m^3$