Hey All,
I know that this is somewhat off thread but can
someone explain how a planet can "slingshot" a
satellite that has come near it at a *higher* velocity
than before the satellite reached the planet? Here is
where I struggle with this idea: if satellite is
approaching a planet, then that planets gravity should
begin to accelerate that satellite towards it. But as
the satellite *departs* the planet after making
closest approach that same gravity should decelerate
the satellite by just as much - with no net positive
gain, right???
Regards,
Jeff Umbarger
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