Question

Which of the following has zero magnitude?

(a) Fixed vector

(b) Zero vector

(c) Modulus of a vector

(d) Unit vector

I had been asked this question in my homework.

Enquiry is from Scalar and Vector topic in section Laws of Motion of Engineering Physics I

Answer 1

Right option is (b) Zero vector

For explanation I would say: A zero or null vector is a vector that has zero magnitude and an arbitrary direction. The velocity vector of a stationary object is a zero vector.