Question

$S=ut+\frac{1}{2}a{t}^2$ make $u$ the subject of formula.

Answer 1

$S=ut+\frac{1}{2}a{t}^2$

Move 'u' to left side

$ut+\frac{a{t}^2}{2}=S$

$ut=S-\frac{a{t}^2}{2}$

Divide 't' in both side

$u=\frac{s}{t}-\frac{at}{2}$