A classical mechanics problem by Krishna Kanth Dasari

Classical Mechanics Level 1

I have measured a mass to be 1 kg here on Earth using a common balance. Then I asked you to measure the same mass on moon using same common balance and weights. What will be your new measurement value of mass.

Less than 1 kg More than 1 kg 1 kg Cant prdict with the given data

Krishna Kanth Dasari by Krishna Kanth Dasari , 29, India

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3 solutions

Rimson Junio
Sep 1, 2015

Though the weight of the object is reduced, the weight of the weights will be reduced by the same amount and thus the two sides will still balance. Therefore, you'll still get 1 kg as the answer for the measured mass of the object.

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Anandlogesh Rr
Sep 10, 2015

It's clearly given "mass" and not "weight". Mass of an object is constant everywhere in the universe unless the object is subjected to some sort of "wear and tear". So, the answer is 1 kg.

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On earth when I first got the 1 kg value it menace the attraction force between earth and the mass and, earth and the counter weight is same, hence stating that both are of same mass which is 1 kg (cause counter weight is known 1 kg). Now place this setup on moon still the moon will attract the both mass and counter mass with the same force, cause we know both are of same mass.

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