- #1
wiegetz
- 20
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Homework Statement
Are 11,2km/s enough, to wrest away from the Suns gravitational field? (We are departing away from the Earth planet, away from the sun)
Here I am unsure if I should use Suns Radius or Earths Radius r. I think that Suns Radius would be more logical, since the problem is about getting away from the Gravitational Field of the Sun. Might be wrong though :)
The Formula I need for this: v = √2γM/r
Suns Mass: 1,989*1030kg
Suns Radius: 696.342 km = 696342000m
(Earths Radius : 6370km = 6370000m
Homework Equations
v = √2γM/r
The Attempt at a Solution
v = √2γM/r
Inserting the Data : v = √2*6,672*10-11*m3*s-2*1,989*1030kg/696342000m
My Result: 617375,1049m/s or ≈ 617,4km/s is needed to wrest away from Suns gravitational field.
Solution: No, 11,2km/s is far not enough to wrest away from Suns gravitational field.