pre-reqs: trig Think of the following two things. Temperature and wind speed. These are two different things that you could measure, but there is one big difference. Wind speed has two parts to it - ...

Vectors are added ‘nose to tail’ as shown below. The addition of the vectors is the line from the starting point to the finishing point. Triangles ABC and XYZ are equilateral. X is the midpoint of AB, ...