Question

a uniform metre scale of mass 80 g is to be balanced at 70 cm mark.Find from where must a mass of 60 g be suspended to do so.

Answer 1

weight of metre scale= 80g

fulcrum= 70cm

let 60g be suspended at ycm

sum of clockwise moment= sun of anticlockwise moment

60 x y = 80 x [70-50]

60y = 1600

y = 26.67cm

the mass of 60g must be placed at a distance 26.67 cm away from the fulcrum

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0                                               50             70                  y          100

                                                  l                                      l

                                                80g                                60g

Answer 2

Answer:

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