Similar for more than two forces. Examples: 3D Similar to 2D. Unit vectors: and Directional Cosines: If we have vector , we can introduce directional cosines , where -coordinate direction angles between vector and positive directions of coordinate system. Then Where is unit vector in the direction of = and
Similar for more than two forces. Examples: 3D Similar to 2D. Unit vectors: and Directional Cosines: If we have vector , we can introduce directional cosines , where -coordinate direction angles between vector and positive directions of coordinate system. Then Where is unit vector in the direction of = and
1a%20vectors%20and%20matrices_4.docx