Three forces acting on an object are given by

F$1=(1\mathrm{.}95+7\mathrm{.}15)$ N$,$

F$2=(4\mathrm{.}551\mathrm{.}15)$ N$,$

and

F$3=(43)$ N$.$

The object experiences an acceleration of magnitude $3\mathrm{.}90$ 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 $20\mathrm{.}0$ s$?$

m$/$s

$($d$)$ What are the velocity components of the object after $20\mathrm{.}0$ s$?($Let the velocity be denoted by

v$.$

$)$

v $=$

$+$

$$m$/$s