NCERT Exercise 10.2 Q10 - Vector Algebra

Question: Find a vector in the direction of a = 5 i-hat - j-hat + 2 k-hat which has magnitude 8 units.

Answer: (40 i-hat - 8 j-hat + 16 k-hat)/sqrt(30).

Full step-by-step NCERT solution with diagrams on Something by Zero.