The meter stick shown below is held by a low-friction support on the black stand. A single weight and a balloon hang from the left side of the meter stick and a weight with a spring, to which a second weight is attached, hang from the right side of the meter stick.
The meter stick is in equilibrium because the torques exerted on each side are equal and opposite.
Now the string holding the balloon will be burned, so as to exert no torque when the string breaks. What will happen?
When the string breaks:
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