A body of mass 120g placed at the 10cm mark on a uniform ...
A body of mass 120g placed at the 10cm mark on a uniform metre rule makes the rule settle horizontally on a fulcrum places at 35cm mark. Calculate the mass of the rule
60g
80g
120g
200g
Correct answer is D
m = \(\frac{25 \times 120}{15}\)
= 200g
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