Following sets of three forces act on a body. Whose resultant cannot be zero
$10, 10, 10$
$10, 10, 20$
$10, 20, 23$
$10, 20, 40$
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
Mark the correct statement :-
Two forces, each of magnitude $F$ have a resultant of the same magnitude $F$. The angle between the two forces is....... $^o$
If the magnitude of sum of two vectors is equal to the magnitude of difference of the two vectors, the angle between these vectors is ........ $^o$
Can the resultant of $2$ vectors be zero