Please show work!

Question

Calculate the force of Earth's gravity on a spacecraft 3.00 Earth radii above the Earth's surface if its mass is 1600 kg. 

    Radius of the Earth = 6.37 × 10⁶ m Mass of the Earth = 5.96 × 10²⁴ kg.

Express your answer using 3 significant figures.

Answer 1

F_g=G(Mm)/(r^2)

G - gravitational constant (6.67x10^(-11))

M - mass of earth = 5.96x10^24

m - mass of object = 1600

r - distance between objects = (6.37x10^6)+(6.37x10^6)*3

Calculate the above and you should get the answer.