$1-$ Air at standard condition, Flows past a flat place. pressure and shear seress Distributions are given $($Fig$).$ Determine Life and Drag in both cases: a and place hength is $4$ plate width is Ts

a$)$

Sheor in $f=$

pre$))$ure $P(x)=$ constane $=C,($on upper & Lowen

b$)$

$p=0\mathrm{.}744(1-\frac{y^2}{4})$

$(FsinC)$

$P=-0\mathrm{.}893$lback

$1\frac{b}{f}{c}^2$ right & legt