Overview
1) Learn how to do this simulation.
https://phet.colorado.edu/sims/html/balancing-act/latest/balancing-act_en.html (Links to an external site.)
(2) Put 5kg mass at left side (at 2m). This is fixed throughout the experiment!
(3) Try to balance by putting 5kg mass at the right side. Write the position of the 5kg mass. Calculate the net torque. Torque= mass * g*length, and the unit for torque is N.m
(4) Try to balance by putting 10kg mass at the right side. Write the position of the 10kg mass. Calculate the net torque.
(5) Try to balance by putting 20kg mass at the right side. Write the position of the 20kg mass. Calculate the net torque.
(6) What do you conclude?