Question

Two forces each of magnitude P acts on a body placed at a point O as shown. The force necessary to keep the body at rest is of magnitude ?

• A. P along + X axis
• B. P along - X axis
• C. 2P along + X axis
• D. 0.6P along - X axis

Answer 1

The correct option is B P along - X axis

$\therefore 2P\sin {30}^o=2P\times \frac{1}{2}=P$

$\therefore$ To balance force P along the x-axis, force P along x-axis is necessary to keep body at rest.

Hence option B is correct.