Question

$A,B$ and $C$ are the three forces each of magnitude $4N$ acting in the plane of paper as shown in Fig. The point $O$ lies in the same plane. Name the forces producing anticlockwise moments.

• A. $A$
• B. $B$
• C. $C$
• D. both A & B

Answer 1

The correct option is C $C$

If the fingers of the right hand are curled from the direction of r towards the direction of F then the thumb points the direction of torque.

Here to become the direction of force as per given our fingers rotate in anticlockwise direction.

Hence moment due to C is in anti-clockwise direction.