Question

What is the magnitude of the unit vector?

(a) √3

(b) √2

(c) 1

(d) 0

I have been asked this question by my school principal while I was bunking the class.

I'd like to ask this question from Cartesian Vectors topic in section Force Vectors of Engineering Mechanics

Answer 1

Correct answer is (c) 1

Easiest explanation: The magnitude of the unit vector is always = 1. This means unit vector is the vector in the direction of the original vector and the magnitude of the same is unity. And unit vector is always in the direction of its vector.