CE 2450 Chapter : Statics Chapter 2
Document Summary
Chapter 2 force vectors. The direction of a vector consists of its line of action and sense. A graphical representation of a vector is an arrow drawn to scale. Multiplication and division of a vector and a scalar. Vector addition requires the incorporation of the directional aspect of vectors. All vector quantities obey the parallelogram law of addition. R = a + b. Then, from the head of a, draw a line parallel to b. The triangle rule is a special case of the parallelogram law consisting of a head- to- tail method of addition. Vector addition is commutative, meaning that the order of addition of the vectors is not important. R = a + b = b + a. Collinear vectors are vectors that have the same line of action. Vector subtraction is a special case of vector addition. R = a b. R = a + (- 1)b.
