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Ready2GoXtr
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Homework Statement
At perihelion a planet in another solary system is 175 x 10 ^ 6km from its Sun and is traveling at 40km/s. At aphelion it 250 x 10 ^ 6 km distant and is traveling at?
Homework Equations
IiWi = IfWf
The Attempt at a Solution
What do i do?