Question

Eleven forces each equal to $5N$ act on a particle simultaneously. If each force makes an angle ${30}^{\circ }$ with the next one, the resultant of all forces is

• A. $15N$
• B. $55N$
• C. $5N$
• D. $zero$

Answer 1

The correct option is C $5N$

$\frac{360}{30}=12$

Minimum $12$ forces are needed for resultant to be $0$

There are only $11$ forces$.$

$\therefore$ Resultant of all forces is $5N$

Hence,

option $\left(C\right)$ is correct answer.