A uniform meter rule of mass 90g is pivoted at the 40 cm mark. If...
A uniform meter rule of mass 90g is pivoted at the 40 cm mark. If...
A uniform meter rule of mass 90g is pivoted at the 40 cm mark. If the rule is in equilibrium with an unknown mass m placed at the 10 cm mark and a 72g mass at the 70 cm mark, determine m.?
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