Question

Two forces, each equal to $\frac{P}{2}$, act at right angles. Their effect may be neutralized by a third force acting along their bisector in the opposite direction with a magnitude of

• A. P
• B. $\frac{P}{2}$
• C. $\frac{P}{\sqrt{2}}$
• D. $\sqrt{2}P$

Answer 1

Answer: (C)

$\frac{P}{\sqrt{2}}$

Answer 2

Res. force = $\frac{P}{2}$ × P₂ = $\frac{P}{\sqrt{2}}$