June 21st, 2003, 10:37 PM
|
 |
General
|
|
Join Date: Feb 2001
Location: Pittsburgh, PA, USA
Posts: 3,070
Thanks: 13
Thanked 9 Times in 8 Posts
|
|
Re: Tractor Beams: can they pull you in, then slingshot you out the other way?
Quote:
|
in rea world the greater mass attracts the lower mass (think about sun->earth or earth->moon or moon->stones), it is impossible the other way.
|
On the contrary, the force of attraction on both objects is equal; the larger mass shows less effect because of F = ma.
The "wobble" caused by the pull of a planet on its star is how we've found most of the extrasolar planets we know about.
__________________
Cap'n Q
"Good morning, Pooh Bear," said Eeyore gloomily. "If it is a good morning," he said. "Which I doubt," said he.
|