Equilibrium on a Beam

This simulation calculates forces and torques at equilibrium for up to two people standing on a beam. Click and drag sliders to alter values or select a slider and use the left or right arrow keys to change its value step by step.

2.0 ≤ length of beam ≤ 5.0 m          5.0 m


0 ≤ mass of beam ≤ 100 kg            20 kg


0 ≤ beam centre of mass ≤ 5.0 m  2.5 m


0 ≤ mass of person 1 ≤ 150 kg      40 kg


0 ≤ position of person 1 ≤ 5.0 m    1.0 m


0 ≤ mass of person 2 ≤ 150 kg      80 kg


0 ≤ position of person 2 ≤ 5.0 m    4.0 m


0 ≤ position of support A ≤ 5.0 m 0.5 m


0 ≤ position of support B ≤ 5.0 m 4.5 m


gravity 9.8 10 m/s²    show forces and torques


calculate torques around A B

Calculated forces:

Click on the show forces and torques checkbox.

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