Posted by Ashley on .
A vector has an xcomponent of
−25.5
units and a ycomponent of 56.0 units. Find the magnitude and direction of the vector.Direction
° (counterclockwise from the +xaxis)

Physics 
Henry,
Y/X = 56/25.5 = 2.19608
Ar = 65.5o = Rerence angle.
A = 65.5 + 180 = 114.5o = Direction.
Mag. = Y/sinA = 56/sin114.5 = 61.5 Units
NOTE: If you draw the vector diagram showing 56 on the positive Yaxis and 25.5 on the negative Xaxis, you can see that the Direction lies between 90
and 180o. Therefore, 65.5o cannot be the direction.