A uniform metre rule of mass 90g is provided at the 40cm mark. If the...
PHYSICS
WAEC 2000
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: B. 102g
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