Law of sines:
R^2=22^2+35^2-2*22*35*cos52
Two forces act on a point. One force is 35 newtons. The other is 22 newtons. The angle between the two forces is 52degrees. Find the magnitude of the resultant force in newtons.
2 answers
actually, if you draw the parallelogram, you will see that you have the wrong diagonal.
R^2=22^2+35^2-2*22*35*cos(180-52)
If the vectors are u and v, you want |u+v|, not |u-v|
R^2=22^2+35^2-2*22*35*cos(180-52)
If the vectors are u and v, you want |u+v|, not |u-v|
1 answer