The 4.3-kN force F is applied at point A. (a) Compute the moment of F about point O, expressing it both as a scalar (positive if CCW, negative if CW) and as a vector quantity. (b) Determine the coordinates of the points on the x- and y-axes about which the moment of F is zero. Assume xA = 1.1 m, YA = 2.0 m, a = 3, b = 5. у, т A (xµ Y¼) a F --х, m Answers: (a) Scalar: Мо- i kN-m Vector: Mo -( i i+ i j+ i k) kN. On the x (b) axis: X= m On the y axis: i E

The 4.3-kN force F is applied at point A. (a) Compute the moment of F about point O, expressing it both as a scalar (positive if CCW, negative if CW) and as a vector quantity. (b) Determine the coordinates of the points on the x- and y-axes about which the moment of F is zero. Assume xA = 1.1 m, YA = 2.0 m, a = 3, b = 5. у, т A (xµ Y¼) a F --х, m Answers: (a) Scalar: Мо- i kN-m Vector: Mo -( i i+ i j+ i k) kN. On the x (b) axis: X= m On the y axis: i E