Educator

Static Equilibrium

• A force, applied to a body at a given point, produces a torque about another point O. The magnitude of the torque about O is equal to the product of the force and the perpendicular distance of the force from O.
• A body is in static equilibrium if (a) the net force on the body is zero, and (b) the net torque on the body is zero.
• In solving problems on static equilibrium, simplification is obtained if a judicious choice is made of the point O, about which torques are calculated.