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Science/Physics Question

Posted on 3/4/18 at 9:14 pm
Posted by DirtyDawg
President of the East Cobb Snobs
Member since Aug 2013
15551 posts
Posted on 3/4/18 at 9:14 pm
Let's say an airplane flying about 3,000 feet over its target were to drop a 5 gallon water cooler jug full of piss onto a house....Would the house's roof be strong enough to withstand the dropping piss jug?



Keep in mind this house is roughly from around the Civil War era and is poorly kept up by the delinquent residents.
Posted by PrivatePublic
Member since Nov 2012
17848 posts
Posted on 3/4/18 at 9:18 pm to
The more pressing question is, just how long is it going to take you to collect 5 gallons of piss?
Posted by DirtyDawg
President of the East Cobb Snobs
Member since Aug 2013
15551 posts
Posted on 3/4/18 at 9:19 pm to
quote:

The more pressing question is, just how long is it going to take you to collect 5 gallons of piss?



We're about 30% of the way there. Started yesterday and had a solid drinking related event where everyone involved was probably pissing every 10 minutes.
Posted by Sody Cracker
Distemper Ward
Member since May 2016
3409 posts
Posted on 3/4/18 at 9:45 pm to
The OP is making physics fun.
Posted by DirtyDawg
President of the East Cobb Snobs
Member since Aug 2013
15551 posts
Posted on 3/4/18 at 9:51 pm to
I do have a legit purpose for this info...


I already got a guy calculating the proper release point for an accurate run.
Posted by Vols&Shaft83
Throbbing Member
Member since Dec 2012
70096 posts
Posted on 3/4/18 at 10:01 pm to
quote:

Let's say an airplane flying about 3,000 feet over its target were to drop a 5 gallon water cooler jug full of piss onto a house....Would the house's roof be strong enough to withstand the dropping piss jug?



How well sealed is the jug? If the piss disperses mid flight, the roof has a decent chance. But no chance in hell if the jug is sealed.
Posted by DirtyDawg
President of the East Cobb Snobs
Member since Aug 2013
15551 posts
Posted on 3/4/18 at 10:09 pm to
It’s going to be properly sealed. We want maximum weight.
Posted by PorkRoast
Louisiana
Member since Sep 2015
6047 posts
Posted on 3/4/18 at 10:16 pm to
quote:

But no chance in hell if the jug is sealed.


This. Especially if it's not well-maintained like you say.
Posted by tokenBoiler
Lafayette, Indiana
Member since Aug 2012
4832 posts
Posted on 3/4/18 at 11:09 pm to
quote:

Would the house's roof be strong enough to withstand the dropping piss jug?
Yes, because from 3,000 feet you'd miss.
Posted by YungBuck
Mandeville
Member since Dec 2017
2450 posts
Posted on 3/5/18 at 12:15 am to
I’d say drop multiple jugs of piss for both increased chances of hitting the target and fun.

Also please provide us with video entertainment when this happens.

And what frat house are you trying to ruin?
Posted by DirtyDawg
President of the East Cobb Snobs
Member since Aug 2013
15551 posts
Posted on 3/5/18 at 1:21 am to
Not if we go carpet bombing style on them
Posted by DirtyDawg
President of the East Cobb Snobs
Member since Aug 2013
15551 posts
Posted on 3/5/18 at 1:22 am to
We are going out to a field around Athens this weekend for some tests so we can get the feel of it...


Don’t worry bout which one. Just know our accuracy really matters.
Posted by YungBuck
Mandeville
Member since Dec 2017
2450 posts
Posted on 3/5/18 at 1:58 am to
Very intrigued by this. Let us know how the test drops go this weekend.

Wish you the best of luck though and hope a video surfaces somewhere.
Posted by madmaxvol
Infinity + 1 Posts
Member since Oct 2011
20921 posts
Posted on 3/5/18 at 7:13 am to
quote:

Let's say an airplane flying about 3,000 feet over its target were to drop a 5 gallon water cooler jug full of piss onto a house....Would the house's roof be strong enough to withstand the dropping piss jug? Asking for a friend...


FIFY

ETA...ok...real answer

You are talking about roughly 42 pounds of urine.

Speed at impact: 133.84 m/s
Time until impact: 13.66 s
Energy at impact: 170,187 joules = 125,525 lb/ft

Basically...the roof is fricked...


This post was edited on 3/5/18 at 7:23 am
Posted by PurpleandGeauld
Florence, TX
Member since Oct 2013
5323 posts
Posted on 3/5/18 at 9:09 am to
quote:

Time until impact: 13.66 s

These numbers are correct. We need your airspeed to determine the distance from your target at which you need to release the payload. Windspeed and vector matter too, but guessing you won't be able to determine that and readjust your drop point =)
Posted by madmaxvol
Infinity + 1 Posts
Member since Oct 2011
20921 posts
Posted on 3/5/18 at 9:13 am to
quote:

These numbers are correct. We need your airspeed to determine the distance from your target at which you need to release the payload. Windspeed and vector matter too, but guessing you won't be able to determine that and readjust your drop point =)



We can assume that the OP has a Norden Bombsight and associated autopilot system...right?
Posted by DirtyDawg
President of the East Cobb Snobs
Member since Aug 2013
15551 posts
Posted on 3/5/18 at 11:27 am to
quote:

We can assume that the OP has a Norden Bombsight and associated autopilot system...right?



We're looking into getting the same guidance system as the tomahawk cruise missiles
Posted by DirtyDawg
President of the East Cobb Snobs
Member since Aug 2013
15551 posts
Posted on 3/5/18 at 11:29 am to
quote:

We need your airspeed to determine the distance from your target at which you need to release the payload. Windspeed and vector matter too



Pilot claims we can go any speed required. I think our guy calculating the release point said at 150 MPH on a windless day would mean a drop about .2-.3 miles from the target.
Posted by PurpleandGeauld
Florence, TX
Member since Oct 2013
5323 posts
Posted on 3/5/18 at 11:46 am to
quote:

I think our guy calculating the release point said at 150 MPH on a windless day

Drop with no wind at exactly 3,000 ft up is 0.569167 miles from target. Madmaxvol, check my math

v = s/t
s = vt
s = 150 m/h x 13.66 sec
s = (150 m/3600 sec) x 13.66 sec

I know friction due to air resistance would cause an adjustment but with the high tech gear you guys are installing it should be good

EDT: Derp, I didn't allow for the height of the house. If you want it to drop center of the roof you have to adjust for that.
This post was edited on 3/5/18 at 11:51 am
Posted by madmaxvol
Infinity + 1 Posts
Member since Oct 2011
20921 posts
Posted on 3/5/18 at 2:36 pm to
quote:

Madmaxvol, check my math


quote:

v = s/t
s = vt
s = 150 m/h x 13.66 sec
s = (150 m/3600 sec) x 13.66 sec



That's what I got.

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