Three vectors vec(A), vec(B), vec(C) are shown in the figure. Find angle between (i) vec(A) and vec(B) (ii) vec(B) and vec(C) (iii) vec(A) and vec(C).

Three vectors vec(A), vec(B), vec(C) are shown in the figure. Find ang

1.	Three vectors vec(A), vec(B), vec(C) are shown in the figure. Find angle between (i) vec(A) and vec(B) (ii) vec(B) and vec(C) (iii) vec(A) and vec(C).
Answer» SOLUTION :To find the angle between two vectors we connect the tails of the two vectors. We can SHIFT the vectors parallel to themselves such that tails of `vec(A), vec(B)` and `vec(C)` are connected as shown in FIGURE. Now we observe that angle between `vec(A)` and `vec(B)` is `60^(@)`, `vec(B)` and `vec(C)` is `15^(@)` nad between `vec(A)` and `vec(C)` is `75^(@)`.