Problem $1$: $(10$ pts$)$

Similar to the figures on Lesson $9,$ Slide $9,$ sketch the stack$-$up for the following laminates:

$($a$)[\frac{0}{45}\frac{?}{90}]s$

$($b$)[\frac{0_{0\mathrm{.}05}}{+}-\frac{{45}_{0\mathrm{.}1}}{{90}_{0\mathrm{.}075}}]s$

$($c$)[\frac{45}{0}\frac{?}{90}{]}_{2S}$

$($d$)$ boron fibers, $Gr=$ graphite fibers