Physics Question?

Three vectors are given: Vector A forms a 28 degree angle and its magnitude is 66. Vector B forms a 56 degree angle and its magnitude is 40. Vector C goes straight down on the y-axis and its magnitude is 46.8 Determine the sum of the three vectors. Give the resultant in terms of components, magnitude, and angle with x axis. Please show/explain work clearly.

Physics Question?
I won't do it in detail, if it is the college level physics, it is not good to show all the work





let's do the vector a first





magnitude of a = sqrt (a(i)^2+a(j)^2)





hope u know the unit vector i and j which in turn is components of the main vector.





usually a(i) = a*cos(theta)


a(j) = a*sin(theta)





do it for all three vectors.





lazy algebra!