Question

a uniform metre scale is balanced at 60 cm mark when of 5 gf and 40 gf are suspended at 10cm marks and 80cm respectively calculate the weight of the meter scales​

Answer 1

Explanation:

The above given fig.is the one for your question....

Let's say the weight off the scale is W then...

Total Clockwise moment=

(40 × 20)=800......1

Total Anti-clockwise moment=

(5×50)+(W×10)=250+W10........2

We know,Total clockwise moment=Total anti-clockwise moment

so...

250+W10=800

or,W10=800-250