Two forces of magnitude $F$ have a resultant of the same magnitude $F$. The angle between the two forces is ........ $^o$
$45$
$120$
$150$
$60$
Following sets of three forces act on a body. Whose resultant cannot be zero
The vector sum of two forces is perpendicular to their vector differences. In that case, the forces
The resultant of two forces $3P$ and $2P$ is $R$. If the first force is doubled then the resultant is also doubled. The angle between the two forces is ........... $^o$
For the resultant of the two vectors to be maximum, what must be the angle between them....... $^o$