Answer to Question #166007 in Physics for Nova Jane uminga

Question

Find the resultant and direction of 15N and 20N acting 75° with the horizontal

Answer 1

$$R=\sqrt{15^2+20^2+2(15)(20)\cos{75}}=27.9\ N\\\alpha=\arctan{\frac{20\sin{75}}{15+20\cos{75}}}=43.8\degree$$