Body Diagram Torque Example. Hence the body is in translational equilibrium. When you twist a bottle lid to open or close it.
Mg l2mg negative because it produces rotational motion in the opposite direction to τ. The forces are acting on a thin rigid rod and the axis is perpendicular to the page. The net torque produced by the force of gravity.
How to calculate torque.
Sometimes that picture is described as a free body diagram fbd where the object upon which the forces are acting is drawn and the forces are drawn as arrows with their direction and magnitude labeled. The forces are acting on a thin rigid rod and the axis is perpendicular to the page. M 120 n 03 m 36 nm. So the free body diagram for the system now includes four forces the same three as in example problem 1.