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Old 12-13-2006, 06:22 PM   #1
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Default tp gun

does anybody have any ideas on how to build a gun/catapult that would launch tp about 40 feet into the air?
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Old 12-13-2006, 06:25 PM   #2
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Default Re: tp gun

Lots of wood, elastic bands.. etc, what do you have?
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Old 12-13-2006, 06:28 PM   #3
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Default Re: tp gun

about 20 feet of rubber, 1/16"x3/16" and a great deal of wood.
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Old 12-13-2006, 06:38 PM   #4
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Default Re: tp gun

dont forget surgical rubber
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Old 12-13-2006, 07:10 PM   #5
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Default Re: tp gun

here- anybody who knows physics- how many pounds of thrust would be required to launch a 1.5 pound projectile 45 feet into the air?
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Old 12-13-2006, 07:14 PM   #6
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Default Re: tp gun

half life 2 will always tell you

and it depends on the density of the air and the size of the object and stuff.
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Old 12-13-2006, 07:32 PM   #7
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Default Re: tp gun

a standard roll of tp- 5" in diameter x 4.5" long

assume sea level
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Old 12-13-2006, 07:38 PM   #8
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Default Re: tp gun

you'de need to know mass...
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Old 12-13-2006, 07:58 PM   #9
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Default Re: tp gun

yeah mass is where its at lol. theres a difference between mass and weight ya know...
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Old 12-13-2006, 08:03 PM   #10
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Default Re: tp gun

Ya, physics is hard...lol lots of different equations! weight is the force of gravity on something which is Fg=weight=9.8N(mass)...complicated i know I have a final on it next week
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