Question A$2$: A super$-$tanker is $360$ m long and has a width of $70$ m and a draft $($depth of the hull below the surface$)$ of $25$ m $.$ Assuming that the drag is mainly due to the skin friction on the bottom and side faces and that the boundary layer develops naturally $($i$.$e$.$ is laminar at the beginning and has transition to turbulence at about $R{e}_x=300,000),$ determine the force and power required to overcome the skin friction. The ship is may assume, for the turbulent section, that the velocity profile is given by the I$/7-$law.