Following sets of three forces act on a body. Whose resultant cannot be zero
$10, 10, 10$
$10, 10, 20$
$10, 20, 23$
$10, 20, 40$
Two forces $F_1 = 3N$ at $0^o$ and $F_2 = 5N$ at $60^o$ act on a body. Then a single force that would balance the two forces must have a magnitude of .......... $N$
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
The vectors $5i + 8j$ and $2i + 7j$ are added. The magnitude of the sum of these vector is
If $|\,\vec A + \vec B\,|\, = \,|\,\vec A\,| + |\,\vec B\,|$, then angle between $\vec A$ and $\vec B$ will be ....... $^o$
How many minimum number of coplanar vectors having different magnitudes can be added to give zero resultant