Question

Chapter: Vectors and Forces

PLEASE SOLVE THE QUESTION WITH GOOD EXPLANATION .

Answer 1

Answer:

ajdjdifirrjbffjfjfhfj ft bf

Answer 2

Answer:

Dot product of two vectors A and B is given by :

$\vec{A}.\vec{B}=|A||B|cos\theta$ where $\theta$ is the angle between the two vectors A and B.

Magnitude is always positive and is given by |vector| sign .

$\vec{A}.\vec{B}=|A||B|cos\theta\\\\\implies 4\times 3 \times cos30^\circ\\\\\implies 12 \times \dfrac{\sqrt{3}}{2}\\\\\implies 6\sqrt{3}$

Option C is the correct answer !