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Accelerative problem...

Ok I'm in the planning stage of a secret project that is going ot be very risky if it isn't right, I need to accelerate ~100kg from ~20km/h to ~100km/h (I gave it all metric to help) over a reasonably short period of time, any improvement on 100km/h is welcome because I've done this without rockets in the past. Can anyone give me any idea where to get rockets that would be of suitable power, the largest estes rocket peaks at 25N of thrust and falls to 10N of thrust for only 2.5s after this, 10 of them would cause an acceleration of 1.41666. m/s2 which isn't much use to me. Unless I did my maths wrong, it's been a good while since i've done anything like this... Basically I'm looking for thrust and alot of it, preferably from something inexpensive but on this one I wouldn't mind paying a bit... Also I did look at the homemade candy rockets but I wasn't sure I'd be able to achieve the amount of thrust safely...

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Kiteman9 years ago
Huge trebuchet?

Giant crossbow (with a truck leafspring for the bow, winched back)?

A big engine running a single wheel, lower the wheel on top of The Thing, it shoots out (like a giant paper plane launcher )
killerjackalope (author)  Kiteman9 years ago
I like the crossbow idea that needs to live in the experiments bin, think more like ten of them though welded in to a bow and the steelcable for string, attatched to a tesco shopping trolley, now it's a chav cannon (we'll lure them in with promises of burberry and E's)
a jetpack?
killerjackalope (author)  Pumpkin$9 years ago
If the rocket bike is too safe when finished then it'll bore me in to jet pack territory.
For our colonial readers, chavs are a UK social group who would like to be rick black rapper gangsters, but are nearer to being urban rednecks than anything else.

wikipedia
Google images
killerjackalope (author)  Kiteman9 years ago
strangely we're the only country in the world with chavs, well maybe southern ireland, nowhere else has a problem like it, everyone has gangs so do we but not chavs...
No, america has them as well. They just don't have a name (other than 'that idiot') as far as I know. Tend to have cheep cars with expensive speakers : P
wiggers thats what they are called around here(north carolina, USA) i think you all can figure out why.... i dont mean to steal your thread but i need help with something similar(but on a WAY smaller and non dangerous scale lol) i need ~1cm of downward pull to pull something up ~6 cm. the downward pull is a constant thanks in advance (i hate to ask questions on another thread but i posted a topic and nobody responded and this is sorta an emergency...)
killerjackalope (author)  jtobako9 years ago
Nah these are a race in their own right, though they have a culture of ricer like cars, except more homemade solutions like cutting a hole in the exhaust and a 20 quid induction kit added incorrectly, usually in front of the airbox (so it damages power output) And they don't have expensive speakers, they steal your hifi and stuff it in the boot. that and chavs come in their thousands, all live in estates and have encompassed many other stupid cultures, mostly though simply the dregs of the gene pool... ok that was a joke but there's a similar effect to inbreeding seen after only three generations closed in one estate...
...the dregs of the gene pool...

I prefer to think of the shallow end of the gene pool.
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