$5$ For landing:

$C_{L_{\text{M}\text{a}\text{x}}}=2\mathrm{.}7on$ the approach

$C_L=0\mathrm{.}3on$ the ground run $(spoilers$ raised$)$

$C_{D_0}=0\mathrm{.}042,K=0\mathrm{.}052$

Ground$-$effect factor, $,=0\mathrm{.}73$

${}_R=0\mathrm{.}25$

Fuel remaining $=10\%$

Reverse thrust $=$ none $.$

Calculate

i$)$ the landing speed if $V_L=1\mathrm{.}3V_{\text{S}\text{t}\text{a}\text{l}\text{l}},$

ii$)$ the ground run distance.

$[87\mathrm{.}4$ kt$,427m]$