Question

please answer briefly
​

Answer 1

The magnitude of the gravitational force between earth and an object is given by the formula.

F=GMm/R^2

m=1kg M=6*10^24kg

R=6.4*10^6m

G=6.67*10^-11Nm^2/kg^2

F=6.67*10^-11*6*10^24*1/(6.4*10^6)^2

F=9.8N