Question

Sarah choose for the class four vectors A, B, C, and D with components: Ax=23.5, Ay= -9.7; Bx=-17.3, By=2.3; Cx=51.9, Cy=-32.5; Dx=-10.1, Dy=-12.2. Determine magnitude and direction (as measured from the positive x-axis) of the vector A+B-C-D

*the answer my professor gave was 51.6, -46(angle)

Answer 1

Å - Axi + Ay ĵ = 23.5 i * -9.19 Ã + B - à -5 = (Axt Bore - Cx - Dx) i & (Ay + By - Cy - Dy) ĵ PPPPPPPPP!?????? = (23.5+ (- 17.3) – 519-(-10.1)) î + (-9.7 +2.3-1-32.5) - (-12-2)) Ï Ř = – 35.6 i + 31.3 } IR = J-35.6)2+ (37-3)? 1.36 + 1391. 29 Magnituge 1 R = R 51.56 tomo = 37-3 +35.6 - 35.6 0 = 46.340 o is from – ve & axis so 0 - - 46.340