Question

Velocities of two bodies A and B are given in vectors notation as va =i+2j-3k and Vb=3i+2j-k what will be the relative velocity of b with respect to a?

Answer 1

`V_(B/A)=2i+2k`

Step-by-step explanation:

The relative velocity can be calculated by means of the difference between vector B minus vector A.

`V_(A)=i+2j-3k\\V_(B)=3i+2j-k\\V_(B)-V_(A)=(3-1)i + (2-2)j+(-1-(-3))k\\V_(B/A)=2i+2k`