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The diagram alongside shows a uniform me...

The diagram alongside shows a uniform metre rule of weight 100 gf being balanced on a knife edge placed at the 40 cm mark, by suspending a weight w gf at the mark 20 cm, find:

the value of w.

Text Solution

Verified by Experts

The weight of rule 100 gf will act at the mid point of rulle ie, at the mark 50 cm since the rule is uniform
Taking moment about the knife edge,
`wgfxx(40-20)cm=100gfxx(50-40)cm`
`therefore" "w=(100xx10)/(20)gf=50gf`
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