Almost every branch of engineering today uses vectors as tools. [br][list][*]One of the most common uses of vectors is in solving [u]navigation problems[/u]. These navigation problems use variables such as [color=#0000ff]speed [/color]and [color=#0000ff]direction [/color]to form the computational vector.[/*][*]Some navigation problems require us to find the [b][color=#0000ff]course [/color][/b]of a ship that includes the combined [u]forces of wind and current represented as vectors[/u]. By using vector addition to these different forces, it is possible to create an accurate estimate of the trajectory and distance traveled by the object.[/*][*]Mechanical engineers who design using fluid dynamics concepts use vectors in their calculations to describe real-world forces, such as wind and water motion.[/*][*]Electrical engineers also use them to describe the [u]forces of magnetic and electric fields[/u].[/*][/list] [br][i][color=#980000]For these problems it is important to understand the r[u]esultant of the two forces and the force component.[/u][/color][/i][u][br][/u]