Physics

A metre rule is found to balance at 51cm mark.When a body of 70g is suspended at the 10cm mark,the balance point is found to be at 25cm mark.Find the mass of the ruler and the distance of the balance point from the zero end,if the body were move to the 20cm mark.

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  1. I dnt know it that is why am asking

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    posted by steven
  2. meter rule

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