Finding Resultant Force: Calculation and Explanation

[rahul222]

angle between the resultant and the wind (on the left side of resultant). If u go in the vector adddition site which u gave me the first one http://physics.bu.edu/~duffy/java/VectorAdd.html
in this site the angle between green and red in the question.Hopefully u got it and can explain me.

 

[Redbelly98]

This sounds reasonable, that the resultant and wind vectors are 81 degrees apart.