Answer:
100 N
Explanation:
Let us first find the mass of the person when they are on the earth's surface
[tex]F=G\frac{Mm}{r^{2} }\\[/tex]
Now let us see how F changes if the distance between two masses is doubled
[tex]F_{1} = G\frac{Mm}{(2r)^{2} } = \frac{1}{4} *G\frac{Mm}{r^{2} }[/tex]
So when the distance of separation is doubled, the force of gravity between the two masses decreases by a factor of four
Therefore her new weight = 400 N/4 = 100 N
