Golf Ball Cannon

[PCGUY]

<div align="center">GOLF BALL CANNON

Provided By Mr.Plow - <a href="http://www.geocities.com/boomstick989"> ... 9</a></div>

[theexp]

Nice clean cannon. How far does it shoot golf balls

Seems like it would be very destructive

[deathtodeer666]

man I bet that kicks like a mule

[CS]

A little maybe but not that much because golf balls arent that heavy. Here is pimpmann22's third law of spudgun physics "Heavy ammo= Lots of kick, Light ammo= Little kick"

[boilingleadbath]

In fact, recoil should go pretty much as:
sqr(M_projectile)

[drac]

English blb, english. Not many people hear know the terms from the engineer's lexicon.

[boilingleadbath]

When did "sqr" [square root] become a term relinquished to engineers!? Heck, excell uses it. Or are you refering to the subscript of the "M" (mass)? I didn't really think M for mass, or subscripts where that exotic...

For those that don't know what a square root is (although I might recomend to wait a few years before you build a spudgun) this basicaly means that if one where to quadruple the projectile mass, the recoil would double.

My reasoning (which ignores the propelent gas, so it's not the most accurate) goes like this:
The energy given to the projectile is always the same. (pretty close, with a good valve and common masses)
Solving E_nergy = 1/2M_assV_velocity² for V gives V = sqr(1/2ME) ... and because 1/2 & E are constant, we can ignore them for the rest of the reasoning.
The momentum of an object: P_(momentum) = MV.
Thus; P = M*sqr(M)
... oops, it seems I messed up on my mental algebra the first time through; the table should be like this:
<table align="left" border="1" cellpadding="5" cellspacing="5">
<tr><td>mass</td><td>recoil</td></tr>
<tr><td> .25</td><td>.125</td></tr>
<tr><td>1</td><td>1</td></tr>
<tr><td>2</td><td>1.68...</td></tr>
<tr><td>4</td><td>8</td></tr>
</table>

[drac]

Ahhh, thats the physicist's lexicon. My bad.

Your explanation clears things up a lot. Thanks.

[saladtossser]

blb, work on the table!!!!

[rna_duelers]

yer thats basic, heavy ammo=big kick...water= blown out of hand cannon and big arse bruse on knee cap....lol was lots of fun but i would not recomend it to anyone..u get hurt by the way it is a nice clean gun

[PCGUY]

Wow BLB your table seriouselly screwed up the forums, however I fixed it for you 8) .

[bubblebathman]

that looks like that would hurt if ur arm was in the way of that kick OWWWWW

[finchmeisterflex]

I was wondering what kind of material the solenoid valve was made from.
If it is metal please can someone tell me where to find one that could be bought on a small budget?

[spudshot]

its just a normal plastic sprinkler valve, just a different brand than the green orbits you normally see

[Obctg]

is the recoil measured in newtons, or is it just a ratio