A uniform beam is pivoted at its centre. Two weights are placed on the beam in the positions shown and the beam is balanced by an upward force F.What is the size of F?

A participant in a “strongman” competition uses an old-fashioned device to move a large load with only muscle power. A 1 ton (910 kg) bucket of rocks is suspended from a sturdy, lightweight beam 0.77 m from a pivot. The man lifts the beam at its end, 3.5 m from the pivot, and holds it steady.  What is the force on the beam from the pivot?

A 2.000 m long horizontal uniform beam of mass 20.00 kg is supported by a wire as shown in the figure. The wire makes an angle of 20.00 degrees with the beam. Attached to the beam 1.400 m from the wall is a ball with a mass of 40.00 kg. What are the vertical and horizontal components of the force of the wall on the beam at the hinge?

A uniform rod of length L and weight W is placed on a fulcrum a distance of 0.4L from the left end. On the left end is placed a mass of weight 2W and on the right end a vertical force F is applied to keep the system in balance. What are the magnitude and direction of the force F?

An m𝑚 = 1.81-kg ball tied to a string fixed to the ceiling is pulled to one side by a force F at an angle of θ𝜃 = 25.4°. Just before the ball is released and allowed to swing back and forth, how large is the force F that is holding the ball in position?

concept of beam balance