# Adding vectors graphiclly

I understand how to add vectors graphiclly where i am stuck is how to show this one vector on a graph. Vector A = 80 lb at 60 degrees Vector B = 120lb at -45 degrees. the only part that doest make sense is it is in pounds so what do i do for the magnitudes.

## Answers and Replies

Pythagorean
Gold Member
Pythagorean theorem

what my question is if it were 2m at 30 degrees i would have no problem. Just scale it down and go from their. what is screwing me up is it is in pounds. how do i draw a line with the magnitude of 80 lbs

Hootenanny
Staff Emeritus
Science Advisor
Gold Member
what my question is if it were 2m at 30 degrees i would have no problem. Just scale it down and go from their. what is screwing me up is it is in pounds. how do i draw a line with the magnitude of 80 lbs
Provided that all the vectors are in the same unit, it doesn't matter what that unit is. Simply draw a vector with units of pounds as you would if it has units of meters.

Last edited: