Question

a body weight 63 Newton on the surface of the earth what is the gravitational force on it due to the earth mass of earth equals to 6 x 10 to the power 24 kg and radius of the earth equals to 6.4 x 10 to the power 6 m the distance of the body from the surface of the Earth is equal to have the radius of Earth

Answer 1

mg=63
m=6.3kg=63*10-¹kg
F=GMm/r²
r=10^6(6.4+3.2)=9.6*10^6
F=6.67*10-¹¹*6*10²⁴*63*10-¹/9.6*10^6
F=262.6*10^6=2.626*10^8N