- #1
lozzajp
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Homework Statement
where does the gravity cancel out between the Earth and moon?
Homework Equations
s=3.84405x10^8m
earth m = 5.98x10^24kg
moon m =7.35x10^22kg
G = 6.67x10^-11N m^2/kg^2
mass of object between = 1kg for simplicity
F = G x m / r^2
r = ?
F Earth = F moon
G x Earth / r^2 = G x moon / (s-r)^2
The Attempt at a Solution
I get so far with that and I've ended up with:
earth = (moon x r^2) / (s-r)^2
not sure if its right and how do i isolate r?
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