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ohheytai
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A comet is in an elliptical orbit around the Sun. Its closest approach to the Sun is a distance of 4.7x10^10 m (inside the orbit of Mercury), at which point its speed is 9.6x10^4 m/s. Its farthest distance from the Sun is far beyond the orbit of Pluto. What is its speed when it is 6x10^12 m from the Sun? (This is the approximate distance of Pluto from the Sun.)
G*M*((1/ri) - (1/rf)) = (1/2)*((vi)^2 - (vf)^2)
i got 4.2103e4 m/s is this right? someone please help i plugged it into that eqaution if it isn't can someone show me how? thanks
Homework Equations
G*M*((1/ri) - (1/rf)) = (1/2)*((vi)^2 - (vf)^2)
The Attempt at a Solution
i got 4.2103e4 m/s is this right? someone please help i plugged it into that eqaution if it isn't can someone show me how? thanks