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 :

  • A

    $P\, tan\, \theta = Q\, tan \, \alpha$

  • B

    $P\, sin\, \theta = Q\, sin\, \alpha$

  • C

    $P\, cos\, \alpha = Q\, sin\, \theta$

  • D

    $P\, sin\, \alpha = Q\, sin\, \theta$

Similar Questions

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