Question

Derive the expression for magnitude and direction of resultant of two concurrent vectors

Answer 1

Firstly we must know that the concurrent vectors have the same origin and cross a single point, also a vectorial magnitude is that which has a number, direction and sense.

Let A and B be two concurrent vectors, the direction is expressed by COSθ then the resulting magnitude is given by the following expression:

R = √(A^2+ B^(2 )+2.A.B.COSθ)