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A uniform have metre rule,pivoted at 20cm mark balances horizontally when a mass of 50g is suspended from 4cm mark calculate the mass of the metre rule.

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  1. summing moments about the 20 cm mark, and assuming the mass of the rule is at the 50cm mark.

    50g(20-4)+M(20-50)=0
    M=50(16/30)

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  2. You were supposed to convert 50g to kg then find weight

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  3. What is the length of the half meter rule?

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  4. w1×m2=w2×m2
    So, 16×50=30×m
    M=26.6

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  5. how did you get 26.6

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  6. So what is the correct answer

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  7. YES

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  8. A uniform half metre rule, pivoted at the 20cm mark, balance horizontally when a mass of 50g is suspended from the top. Calculate the mass of the metre rule

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