How many minimum number of coplanar vectors having different magnitudes can be added to give zero resultant
$2$
$3$
$4$
$5$
A person goes $10\, km$ north and $20\, km$ east. What will be displacement from initial point........$km$
Which of the following is independent of the choice of co-ordinate system
The sum of three forces ${\vec F_1} = 100\,N,{\vec F_2} = 80\,N$ and ${\vec F_3} = 60\,N$ acting on a particle is zero. The angle between $\vec F_1$ and $\vec F_2$ is nearly .......... $^o$
The vectors $\vec{A}$ and $\vec{B}$ are such that
$|\vec{A}+\vec{B}|=|\vec{A}-\vec{B}|$
The angle between the two vectors is
Unit vector parallel to the resultant of vectors $\vec A = 4\hat i - 3\hat j$and $\vec B = 8\hat i + 8\hat j$ will be