In the figure below, PT is a uniform meter rule pivoted at R. the 70cm mark. Two forces 0.1N and 0.4N are applied at Q, the 60cm mark and S, the 85cm mark. If the meter rule is kept in equilibrium by the forces and its weight, calculate the weight of the meter rule. A 0.25N B.0.30N C 0.35N D.0.50N E.0.56N​
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In the figure below, PT is a uniform meter rule pivoted at R. the 70cm mark. Two forces 0.1N and 0.4...
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