1J40.42 - Equilibrium of Forces and Torques

Equilibrium of forces and torques


PIRA Classification: 1J40.42

Description: An aluminum bar is held in equilibrium by two 90 g masses hanging over pulleys. When 20 g is moved from one hanger to the other, the net torque becomes non-zero, causing the system to rotate.

Special Instructions: Hold the bar while moving mass from one hanger to the other

Condition: OK

Setup time: 2 minutes