Question

For two vectors defined by an arrow with a head and a tail. The length of each vector and the angle between them represents:

(a) Their magnitude’s square and direction of the line of action respectively

(b) Their magnitude and direction of the line of action respectively

(c) Magnitude’s square root and direction of the line of action respectively

(d) Magnitude’s square and the ratio of their lengths respectively

This question was posed to me in an online quiz.

I'd like to ask this question from Addition of a System of Coplanar Forces topic in section Force Vectors of Engineering Mechanics

Answer 1

The correct choice is (b) Their magnitude and direction of the line of action respectively

The explanation: For two vectors defined by an arrow with a head and a tail. The length of each vector and the angle between them represents their magnitude and direction of the line of action respectively. The head/tip of the arrow indicates the sense of direction of the vector.