A $20$ m$/$s wind $($viscosity is $1\mathrm{.}8$ x$10-5$ Pa$-$s$,$ density is $1\mathrm{.}22$ kg$/$m $3$

$)$ blows against a $20$ m

tall flag pool that is $0\mathrm{.}12$ m in diameter.

$($a$)$ Determine the anchoring moment at the base of the pole $($no flag$).[$Answer: $70\_\_$ N$-$m$]$

$($b$)$ Determine the anchoring moment at the base of the pole if a $2$ m by $2\mathrm{.}5$ flag is attached to

the top of the pole. $[$Answer: $89\_\_$ N$-$m$]$