Re: The opposing rockets and the box

Michael Moroney wrote:
Wow is right. Space***, it's rather strange to see you rail on why
relativity is wrong when you don't even seem to know high school
physics. Think about it. When that cannonball gets fired into that
lump of clay stationary in space, does the cannonball/clay lump move:

1) not at all
2) slower than the cannonball before impact
3) the same speed as the cannonball
4) faster than the cannonball

Of course it would be 2 Mike.
But the problem is Greg is ignoring the actual
difference when he gets back to m*v all over again.
The small ball was m*v alone and now he has the
larger and small ball being m*v again.
He might as well have not done any math to
come up with m*v all over again.
Sheesh.


More important is Why? That's what Greg was explaining
mathematically.

Maybe if I use a different description that even a tire salesman could
understand.

*** Off.
It seems you also have no clue what I actually am.
You have fallen for the lemming description of my job.
LOL


A 9 ton truck is stopped in neutral on a level road with its parking
brake off. Assume the road, tires, bearings etc. are frictionless.
A 1 ton compact car, also with frictionless tires etc. rolls into the
truck at 10 mph and sticks to it on impact. Does the truck/car combo
move? At what speed? Why?

Maybe you should think about such.
Do you think once the truck is moving, it will take
the same opposite force impact to stop the truck again?
IF you do. you have created a wonderful problem
with ignoring the new KE of the truck.
LOL

--
James M Driscoll Jr
Spaceman






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