- #1
TonkaQD4
- 56
- 0
(a) At what height above the Earth is the acceleration due to gravity 10% of its value at the surface?
(b) What is the speed of a satellite orbiting at that height?
Note: _e means earth
g = { g_e / [1+(h/R_e)^2] }
At height 0, g = 9.83m/s^2
R = 6400km
I know that we need to isolate "h". I don't quite understand how to start this problem though. Where do we plug in that 10% or what exactly does that 10% mean? I guess the wording of the question is what makes this problem confusing. Help me start this please.
(b) What is the speed of a satellite orbiting at that height?
Note: _e means earth
g = { g_e / [1+(h/R_e)^2] }
At height 0, g = 9.83m/s^2
R = 6400km
I know that we need to isolate "h". I don't quite understand how to start this problem though. Where do we plug in that 10% or what exactly does that 10% mean? I guess the wording of the question is what makes this problem confusing. Help me start this please.