Question

The working of a common balance or a physical balance is based on the 'Principle of moments'. A metre scale of uniform density is balanced at the centre. If a mass of 2 kg is suspended at an edge of the scale, then what mass should be suspended on other side at 1/4th length of the scale to maintain the horizontal position of the scale?
explain​

Answer 1

Answer:

The working of a common balance and physical balance is used on the basis of "Principle of moments". A meter scale of uniform density is being balanced at the centre.