Physics, Torque (10 of 13) Static Equilibrium, Hanging Sign at an Angle No. 4

Shows how to use static equilibrium to determine the tension in the cable supporting the beam from which the sign is hanging. To solve this problem we will set the sum of the torques equal to zero and solve for the force in the cable.

Torque is a rotating force. It is a measure of how much force is acting on an object that causes the object to rotate. The object will rotate about an axis, which is called the pivot point. It is labeled with the letter P or O. The distance from the pivot point to the point where the force acts is called the moment arm or the lever arm. This distance is labeled with the letter r. This distance r is also a vector, and points from the axis of rotation to the point where the force acts. The force is labeled with the letter F.

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