The wedge is kept below the 60 cm mark on the meter scale known masses of 1 kg and 2 kg are hung at 20 cm and 30 cm mark respectively. Where will a 4 kg mass will be hung on the meter scale to balance it? (in cm)
85
90
70
75
To find the mass of a given body using a metre scale by principle of moments -
As we learn
To find the mass of a given body using a metre scale by principle of moments -
Calculation
m = mean mass
At equilibrium, net moment = 0
(from wedge)
Distance from end = 85 cm
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