1. The problem statement, all variables and given/known data
got a vector F (105,300,140)
magnitude: 347.3
it wants the angles, 3 of them with the axis x y z
2. Relevant equations
all my calculations has lead to the wrong answer, but the correct answer is (180-myanswer)
why is that?
3. The attempt at a solution
using AB = |A||b| cos α formula
so with an x-axis the coordinates are (1,0,0)
FX/|F||X|=cos(x-axis angle)
arcos(105/347.3) = x-axis angle
getting the answer: 72.4degrees
the "correct" answer is 107.6
meaning 180-72.4, why am i getting this 180degree descrepency?
got a vector F (105,300,140)
magnitude: 347.3
it wants the angles, 3 of them with the axis x y z
2. Relevant equations
all my calculations has lead to the wrong answer, but the correct answer is (180-myanswer)
why is that?
3. The attempt at a solution
using AB = |A||b| cos α formula
so with an x-axis the coordinates are (1,0,0)
FX/|F||X|=cos(x-axis angle)
arcos(105/347.3) = x-axis angle
getting the answer: 72.4degrees
the "correct" answer is 107.6
meaning 180-72.4, why am i getting this 180degree descrepency?
0 commentaires:
Enregistrer un commentaire