A 1-kg rock is suspended from the tip of a horizontal meterstick at the 0-cm mark so that the meterstick barely balances like a seesaw when its fulcrum is at the 12.5-cm mark. From this information, the mass of the meterstick is
A) 1/4 kg.
B) 1/2 kg.
C) 3/4 kg.
D) 1 kg.
E) none of the above
Question 2
A 1-kg rock is suspended from the tip of a horizontal meterstick at the 0-cm mark so that the meterstick barely balances like a seesaw when its fulcrum is at the 25-cm mark. From this information, the mass of the meterstick is
A) 1/4 kg.
B) 1/2 kg.
C) 3/4 kg.
D) 1 kg.
E) none of the above
An Underwriters Laboratory mark.
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