A body of mass $5 \mathrm{~kg}$ is acted upon by two perpendicular forces $8 \mathrm{~N}$ and $6 \mathrm{~N}$. Give the magnitude and direction of the acceleration of the body
(a) $2 \mathrm{~m} / \mathrm{s}^{2}$ at an angle $3 \underline{*}$ to force
(b) $2 \mathrm{~m} / \mathrm{s}^{2}$ at an angle $57^{\prime}$ to force
(c) $4 \mathrm{~m} / \mathrm{s}^{2}$ at angle $37^{*}$ to force
(d) $4 \mathrm{~m} / \mathrm{s}^{2}$ at an angle 57 to force