1) The vector sum of three vectors gives a resultant equal to zero. what can you say about the vectors?

2) Vector is 3.00 units in length and points along the positive x-axis. Vector is 4.00 units in length and points along the negative y-axis.Use graphical methods to find the magnitude and direction of the following vectors:
A) A+B
B) A-B
C) A+2B
D) B-A

2 answers

1) They are in an equilibrant system.

2)That has to be done on graph paper.
well first they are in equilibrium

second using Pythagoras Theorem you get 5 as the magnitude

using tan^-1 Vy/Vx you'll get 53.1 as the degree