What is the magnitude of the gravitational force between the earth and a 1 kg object on its surface? (Mass of the earth is 6 × 1024 kg and radius of the earth is 6.4 × 106 m.)

Given that,

Mass of the body, m = 1 kg

Mass of the Earth,M

Radius of the Earth,R

Hence, magnitude of the gravitational force (F) between the earth and the body is given by,

F= 9.77 N = 9.8 N (approx)