a) Find the scalar sum of forces in the x-direction. b) c) Find the scalar sum of forces in the y-direction. Write Ⓡ, the resultant force (vector sum of forces), in i.ĵ, k form. d) What is the magnitude of R? (don't forget units) e) f) Sketch the resultant vector Ⓡ and calculate the angle R makes with the horizontal. Determine the sum of moments, MA, about point A using scalar methods. (don't forget units, and remember that direction is a sense of rotation for torque). 40 lbs 80 lbs A 40 lbs 2' 42° 2' 30 lbs