Question

For a system to be in equilibrium, the torques acting on it must balance. This is true only if the torques are taken about

• A. the centre of the system
• B. the centre of mass of the system
• C. any point on the system
• D. any point on the system or outside it

Answer 1

The correct option is B the centre of mass of the system

For a system to be in equilibrium torques on the system must be equal to zero

This is true only if the torques are taken about centre of mass as the whole mass of the object seams to be situated at centre of mass