Question

19.On the ground, the gravitational force on a satellite is w.
What is the gravitational force on the satellite when at a heis
R/50, where R is the radius of the Earth?

1.04 W
1.02 W
0.98 N
0.96 W
2.13 W​

Answer 1

Answer:

Because of equality

F = - m. (G.M/r ²) = - m.g

one draws

G = G.M/r ² = [G.M/R ²] * [1 (1+z/R)]² =g○/(1+z/R) ²

► g (z) = g○/(1+z/R) ²

▬▬▬▬▬

> W/W○ = g/g○ = (1+z/R)⁻ ² = (1 + 1/50)^-2 = 0,961 ◄(D)