Graphical method of vector addition:
There are two parts that describe the resultant vector graphically—its magnitude and its compass direction.
Inertial Frame of Reference
Relative velocities
Properties of vectors
Mathematical method of vector addition:
20 N, 40°, north of east | is equivalent to | 20 N, 40° | graphing calculator answer is | 20 N, 40° |
20 N, 40°, north of west | is equivalent to | 20 N, 140° | graphing calculator answer is | 20 N, 140° |
20 N, 40°, south of west | is equivalent to | 20 N, 220° | graphing calculator answer is | 20 N, -140° |
20 N, 40°, south of east | is equivalent to | 20 N, 320° | graphing calculator answer is | 20 N, -40° |
20 N, 50°, east of north | is equivalent to | 20 N, 50° | graphing calculator answer is | 20 N, 50° |
20 N, 50°, west of north | is equivalent to | 20 N, 130° | graphing calculator answer is | 20 N, 130° |
20 N, 50°, west of south | is equivalent to | 20 N, 230° | graphing calculator answer is | 20 N, -130° |
20 N, 50°, east of south | is equivalent to | 20 N, 310° | graphing calculator answer is | 20 N, -50° |
Sin q = (opposite side/hypotenuse)
Cos q = (adjacent side/hypotenuse)
Interactive Vector Addition Vector Addition
Advanced Calculations
Static equilibrium
Unit vector