A uniform metre rule of mass 90g is provided at the 40cm mark. If the…

A uniform metre rule of mass 90g is provided at the 40cm mark. If the rule is in equilibrium with an unknown mass m placed at the 10cm mark and a 72g mass at the 70cm mark, determine m
  • A.
    72g
  • B.
    102g
  • C.
    298g
  • D.
    504g
Correct Answer: Option B
Explanation
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