- #1
rzwhipple
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Homework Statement
Object is moving directly toward earth
initial V = 2000 m/s
distance from center of Earth = 8 X 10[tex]^{7}[/tex] m
Determine speed at impact
Homework Equations
g = [tex]\frac{GM}{R^{2}}[/tex]
The Attempt at a Solution
I am guessing I'll need to integrate to get velocity, but am not sure how to proceed. If I integrate with respect to t, what do I do about the R variable which is also changing?