If you have two vectors a and b and want to add them. Then you would take vector b and place its tail at the end of vector a . Then you would draw a line from the tail of a to the head of b . This line is your new vector with its head at the head of b . A new vector, c , can be drawn from the tail of vector a to the head of vector b .
Vectors have a magnitude plus a direction.
Velocity and displacement are vectors because they have a magnitude and a direction. Ask a Question page. Given the components of a vector we can reconstruct the vector from Unit Vectors Unit vectors are vectors with a magnitude of one and pointing in a particular direction. The sole purpose of unit vectors is specify direction. You are guest number since Sept. 15, 1999.