A uniform metre rule of mass 90g is provided at... - WAEC Physics 2000 Question
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 option: b
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