Determine (rB/A) x and (rB/A)y, the x and y components of the vector r' B/A

Forces F1 = 100 N and F2 are applied at the origin O of the axesx-y-z as shown. The line of action of F1 passes through a point A and F2 passes through point B.[1] Calculate the x, y, and z components of F1.[2] Calculate the projection of F1 on the xy-plane.[3] If magnitude of F2 is thrice the xy-component of F1, calculate the x, y, and z components of F2.

What is the y-component and magnitude of A?

Find the x and y component magnitudes and directions of the 60k force shown

if a and b are vectors given by a = (î- 3ĵ+ 5k) and b = (2î+ 4ĵ + 6k), find a. a+b b. a - b c. a - b (the dot product of a and b or "a dot b")