Re: Sometimes physics is fun

[Bernard Cleyet <anngeorg@PACBELL.NET>]

I see.  Thanks

I was, obviously,  thinking of a person cart.

"... but I'm under the impression that a co2 cartridge will give me more
bang in 30ft than a model rocket motor will (which are also made for more
than a 30ft run)"


grate exercise:  clamp  the motor in a fixture that includes a strain
gauge; collect the force and time data and you have it.  Vernier has it
all + a wood and / or machine shop.

bc

J. Green wrote:

> > How big are these things?
> >
> > I like fire extinguishers (the acid - bicarb. and water may have more
> > "oomph" than a CO2) or SCUBA tanks.
>
> I'm talking about a car the size of a traditional pinewood derby car.
> Traditional specifications:
> Width:   2 3/4 inches
cut