A pulley is attached to one arm of a balance and a string passed around it carries two  masses
Channel: Doubtnut
Date: 2020-08-30

A pulley is attached to one arm of a balance and a string passed around it carries two  masses `m_(1)` and `m_(2)` . The pulley is provided with a clamp due to which `m_(1)` and `m_(2)` do not move . On removing the clamp `m_(1)` and `m_(2)` start moving . How much counterweight is to be reduced or increased to restore balance ?