Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (3rd Edition)

$D = 4.4~\hat{i}+0.9~\hat{j}$
$D_x = 2A_x+B_x$ $D_x = (2~m)~sin(15^{\circ})+(4~m)~cos(15^{\circ})$ $D_x = 4.4~m$ $D_y = 2A_y+B_y$ $D_y = (2~m)~cos(15^{\circ})-(4~m)~sin(15^{\circ})$ $D_y = 0.9~m$ $D = 4.4~\hat{i}+0.9~\hat{j}$