<PRE><B>Question 1184543</B>
.


The scale reads &amp;nbsp;4.5 &amp;nbsp;kg &amp;nbsp;on the moon surface, &amp;nbsp;but these &amp;nbsp;4.5 &amp;nbsp;kg are &amp;nbsp;NOT &amp;nbsp;THE &amp;nbsp;MASS: &amp;nbsp;it is the weight 

presented in very old units.



Kilograms were used as the unit of force &amp;nbsp;(of weight, &amp;nbsp;in particular) &amp;nbsp;before &amp;nbsp;1960, &amp;nbsp;when they were replaced by newtons.



So, &amp;nbsp;if on the moon surface the scales reads 4.5 kilograms, &amp;nbsp;it is &amp;nbsp;NOT &amp;nbsp;THE &amp;nbsp;MASS &amp;nbsp;of the sample: 

it is its weight there.



The mass of the sample, &amp;nbsp;under given condition,  &amp;nbsp;is  &amp;nbsp;{{{4.5*(9.8/1.8)}}} = 24.5 kilogram &amp;nbsp;&lt;U&gt;of mass&lt;/U&gt;.
&lt;/pre&gt;

Solved.




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