OT: Looking for a good physics site

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August 17th, 2007, 11:32 PM

Jack Simth Jack Simth is offline

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Re: OT: Looking for a good physics site

Quote:

narf poit chez BOOM said:
Why is it equal to 0, though?

Brain fried; can't answer post fully at the moment.

That aspect, though...

It's 0 because it's a manipulation of two separate position functions that I want to be in the same place at the same time (definition of interception). They are both position functions, and I want them equal, so I assigned them that way, and tossed the same t in there: p1(t) = p2(t). I then expanded the functions to their components, and merged them onto one side (leaving the other side as 0).

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