Two forces $P + Q$ and $P -Q$ make angle $2 \alpha$ with each other and their resultant make $\theta$ angle with bisector of angle between them. Then :
$P\, tan\, \theta = Q\, tan \, \alpha$
$P\, sin\, \theta = Q\, sin\, \alpha$
$P\, cos\, \alpha = Q\, sin\, \theta$
$P\, sin\, \alpha = Q\, sin\, \theta$
There are four forces acting at a point $P$ produced by strings as shown in figure, point $P$ is at rest. The forces $F_1$ and $F_2$ are respectively:-
When the resolution of vector is required ?
Explain resolution of vectors.
The magnitude of pairs of displacement vectors are given. Which pair of displacement vectors cannot be added to give a resultant vector of magnitude $13\, cm$?
Vector$\overrightarrow A $ makes equal angles with $x, y$ and $z$ axis. Value of its components (in terms of magnitude of $\overrightarrow A $) will be