Equilibrium on a beam JavaScript Simulation

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.
Made in RapidWeaver

Equilibriumon a Beam

Calculated forces: