Question

Three masses of 2 kg, 4 kg and 3 kg are attached with light strings over massless pulley as shown in figure. The pulley itself is attached to a light spring balance. When masses start moving,the reading of the spring balance will be (2) Less than 9 kg (1) Equal to 9 kg (4) Zero (3) More than 9 kg hold

Answer 1

Answer

Now we know, the spring is attached to the pulley which is bearing the tension of the string from both the side, so the spring will show a reading of 2Tg i.e. So the correct option is 'less than 9 kg'.