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You are watching: 60 kg on earth is how much on the moon


I"m writing a trivia quiz and also intend this question, which dates from a high college gimpppa.org check I absorbed 1972. One astronaut tips the scale at 60 kg if on earth, what will certainly she it is in if she procedures on the range on the moon? price 60 kg.Kg steps mass, i m sorry is constant.The concern is not in pounds, or ask around weight. Yes, the is a trick question, but I think that is one entertaining one. The allude is, I"ve looked about the internet and also the discussion all emphasis on in common usage, weight is mass and also nobody to know what a Newton is.I"m particular of my answer, however I"d choose to be ready for part blowback.


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asked january 21 "20 at 2:07
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The answer counts on the type of instrument you are permitted to usage for the measurement. The two types are:

Weighing maker type

Beam Balance type

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This instrument (weighing machine) steps the downward force applied by the object and then divides it by $g$. The is if her body applies a pressure of $W$ top top the scale then the range would show a value of $W/g$. This is since $mg=W$ on earth. However say you space on moon and the maker is celebrated for earth then the body applies applies a pressure say $W"$ climate the reading displayed by the scale would be $W"/g$. Currently on moon $a=g/6$. Therefore the scale would display a reading of about $m/6$ i.e., this device on moon actions $10kg$ because that a human body of $60kg$ on earth.

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This instrument (beam balance) functions on the principal of moments and therefore for same arm size it procedures the mass of the body. Therefore if you space using this instrument then the value would be very same wethere you are on moon or earth.


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edited Jun 4 "20 at 16:03
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answered jan 21 "20 in ~ 4:43
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Unfortunately, scales execute not measure mass. They measure up the force applied by the mass, under the affect of the neighborhood gravity. The truth that they are labelled in "mass" is irrelevant. All the happens is the the readout is "adjusted", so the 588 N is displayed as 60 kg.

Hence, ~ above the moon your scales will certainly show about 10 kg.

See more: Can You Use A 40 Watt Bulb In A Scentsy, What Kind Of Light Bulb Do I Need For My Scentsy

EDIT

I disagree through the comments: also if you room using balance scales, you room measuring force, no mass. Consider the following 2 graphics

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The first shows a normal balance, the second an unequal-arm balance. In the 2nd image, it provides no feeling to say that 30 kg balances 60 kg. The balance is completed by having equal speak (moment that rotation) on both sides. Torque is provided by $ au=r imes F$ where $F$ is force, not mass. For this reason balance is accomplished by using forces of 588 N and also 294 N.


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edited jan 23 "20 at 5:29
answered january 21 "20 at 2:21
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