Question

A uniform metre scale is balanced at the 20 cm mark when masses of 100g and 50g are suspended from the 10cm and 0 cm mark respectively .Calculate the mass of the metre scale

Answer 1

let the mass of meter scale is m

then moments about fulcuram

50×20+100×10=20×m

1000+1000=20m

2000/20=m

m=100gm

I think you can understand