ASK YO

Three forces acting on an object are given by vec$(F{)}_1=(-1\mathrm{.}9$hat$(i)+7\mathrm{.}30$hat$(j))N,$vec$(F{)}_2=(5\mathrm{.}30$hat$(i)-1\mathrm{.}15$hat$(j))N,$ and vec$(F{)}_3=(-41$hat$(i))N.$ The object experiences an acceleration of magnitude $3\mathrm{.}90\frac{m}{s^2}.$

$($a$)$ What is the direction of the acceleration?

$(counterclockwise$ from the $+x-$axis$)$

$($b$)$ What is the mass of the object?

$kg$

$($c$)$ If the object is initially at rest, what is its speed after $18\mathrm{.}0s?$

$\frac{n}{s}$

$($d$)$ What are the velocity components of the object after $18\mathrm{.}0s?($Let the velocity be denoted by vec$(v).)$

vec$(v)=(,$hat$()+,)\frac{m}{s}$