Question

An object placed on an equal-arm balance requires 12 kg to balance it. When placed on a spring scale, the scale reads 12 kg. Everything (balance, scale, set of weights and object) is now transported to the Moon where free-fall acceleration is one-sixth that on Earth. The new readings of the balance and spring scale (respectively) are:
A) 12 kg, 12 kg
B) 2 kg, 2 kg
C) 12 kg, 2 kg
D) 2 kg, 12 kg
E) 12 kg, 72 kg

Answer

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