a metre scale balances at 40 cm mark when a 40 g wt is placed at the 25 cm mark what is the mass of the metre scale
Please solve this it's urgent
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Sum of moments anti clockwise =100+40
Sum of moments clockwise =50×w
By principal of moments
Sum of clockwise moments = Sum of anti clockwise moments
⇒50×w=500
w=10g
Weight of meter scale =10g.
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