Two vectors 5n and 8n act at an angle 45 calculate the resultant

Answer 1

Say 8 in x direction and 5 up 45 degrees from x axis direction
X direction = 8 + 5 * cos 45 = 8 + 3.54 = 11.5
Y direction = 5 sin 45 = 3.54
magnitude = sqrt (11.5^2 + 3.54^2)
angle above x axis = tan^-1 ( 3.54 / 11.5)