Question

A uniform metre scale balances horizontally at 44 cm mark when a weight of 20 g is placed at
15 cm mark. What is weight of metre scale? Draw a diagram of arrangement.

Answer 1

Answer:

The centre of gravity of a meter scale will be acting at the mid point (50 cm) of the scale.

For the balance, the moment of forces on both sides of knife edge will be equal.

So, mg×(55−50)=25g×(100−55) or m=225gram

Answer 2

The centre of gravity of a meter scale will be acting at the mid point (50 cm) of the scale. For the balance, the moment of forces on both sides of knife edge will be equal. So, mgx(55-50)=25gx(100-55) or m=225gram

please mark me as brainliest