Answer:
the magnitude of gravitational force would be 20 N
Explanation:
therefore on a body of mass m by earth is [tex]\frac{GMm}{r^{2}}[/tex]
where M is the mass of earth m is the mass of body, G is the gravitational constant and r is the distance of seperation from centre of earth.
therefore F =[tex]m\times \frac{GM}{r^{2}}=mg=10m[/tex]
therefore F = 20 N.
