Asked by Mary
If a vector K has component Kx = 4.1 and Ky = -13, then find the magnitude K and direction (as a positive rotation angle relative to the +x axis) of the vector.
Answers
Answered by
bobpursley
Kmag=sqrt(4.1^2 +(-13)^2)
I don't have a clue what "positive" rotation means. If you mean clockwise as positive, then
Theta=arctan13/4.1
If you mean counterclockwise rotation as "positive", then
theta= 360deg - aboveangle
I don't have a clue what "positive" rotation means. If you mean clockwise as positive, then
Theta=arctan13/4.1
If you mean counterclockwise rotation as "positive", then
theta= 360deg - aboveangle
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