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This is a link post Ball fired from a cannon at 60mph, from a truck going 60mph
Nice science
 (I helped save b3ta! RompaStompa Stick it up your jumper, Tue 31 Mar 2015, 18:30, , Reply)
This is a normal post I always wondered...

(I helped save b3ta! Black Moon Not cracked, I'm all up to be., Tue 31 Mar 2015, 18:32, , Reply)
This is a normal post going the other way
would it just get stuck in the barrel? or travel at 120mph? I'm assuming the first?
 (I helped save b3ta! Firkinfedup last shat on your wife's tits at, Tue 31 Mar 2015, 19:47, , Reply)
This is a normal post The second one.
Remember that the cannonball is already moving at 60mph before the powder goes off.
 (I helped save b3ta! jonbob loves you, Tue 31 Mar 2015, 20:35, , Reply)
This is a normal post so if you were travelling at the speed of light
would it go at the speed of light +60mph then?
 (I helped save b3ta! Firkinfedup last shat on your wife's tits at, Tue 31 Mar 2015, 20:59, , Reply)
This is a normal post In theory...aye

(I helped save b3ta! Sipowicz Official member of Team Seam, Tue 31 Mar 2015, 21:15, , Reply)
This is a normal post well no
that's against to laws of physics, nothing exceeds the speed of light
 (I helped save b3ta! Firkinfedup last shat on your wife's tits at, Tue 31 Mar 2015, 22:15, , Reply)
This is a normal post ^This
Physics stops it happening for some reason. Everything slows down the closer it gets. I don't know this to be true though but this is what people say. I don't understand the maths but I trust them this is correct. A bit like the Bible
 (I helped save b3ta! spazzcaptain Misses Valin @, Tue 31 Mar 2015, 22:41, , Reply)
This is a normal post Amen!

(I helped save b3ta! gunmetal drove slowly in the passing lane on, Tue 31 Mar 2015, 22:48, , Reply)
This is a normal post That is not strictly true.
It is only so because that is how we measure it. We use light to measure time and distance. So for us, time stands still if we reach the speed of light. But we know distance does not, because light has a finite speed and so you will not be everywhere at once.

So we know time and speed bring us to some happy sums that work out. But only if we measure in light speed. Add distance, and the sums get a little shakey.

Do you know, I never get invited to dinner parties?
 (I helped save b3ta! TheSundaeLunch I'm a fucking shrub, alright?, Wed 1 Apr 2015, 0:07, , Reply)
This is a normal post no

(I helped save b3ta! Rebel biscuit stercore sumus et nos esse novimus, Tue 31 Mar 2015, 21:49, , Reply)
This is a normal post correct
but why?
 (I helped save b3ta! Firkinfedup last shat on your wife's tits at, Tue 31 Mar 2015, 22:14, , Reply)
This is a normal post Because
nothing, that has mass, can travel at the speed of light
 (I helped save b3ta! MyFrontFellOff ; his mouth full of teddies, urinating defiantly, Tue 31 Mar 2015, 22:38, , Reply)
This is a normal post What about photons then, they have mass AND can travel at the speed of light.

(pissflaps. FSPW, Tue 31 Mar 2015, 23:15, , Reply)
This is a normal post they have zero rest mass
en.wikipedia.org/wiki/Photon#Experimental_checks_on_photon_mass
 (I helped save b3ta! omnitruncatedkraken from Empire Algol, Tue 31 Mar 2015, 23:24, , Reply)
This is a normal post Only when thrown by dinosaurs.
And THEY NEVER EXISTED!
 (I helped save b3ta! MyFrontFellOff ; his mouth full of teddies, urinating defiantly, Tue 31 Mar 2015, 23:34, , Reply)
This is a normal post The question is unanswerable.
You could not get a cannon up to c.
 (I helped save b3ta! jonbob loves you, Wed 1 Apr 2015, 2:02, , Reply)
This is a normal post So my physics professor wasn't lying after all!

(pissflaps. FSPW, Tue 31 Mar 2015, 18:45, , Reply)
This is a normal post no
that wasn't his finger
 (I helped save b3ta! --- ---, Tue 31 Mar 2015, 19:00, , Reply)
This is a normal post Bad mistake to read that during a meeting. Had to pretend I inhaled water and made myself look the right twat.
Still LOLing
 (I helped save b3ta! gunmetal drove slowly in the passing lane on, Tue 31 Mar 2015, 19:15, , Reply)
This is a normal post you're a bad person

(I helped save b3ta! --- ---, Tue 31 Mar 2015, 19:27, , Reply)
This is a normal post Only a few more minutes, then off to a private spot for some deserved self abuse.

(I helped save b3ta! gunmetal drove slowly in the passing lane on, Tue 31 Mar 2015, 19:30, , Reply)
This is a normal post nice one
but would this work like jumping up from a plummeting lift at the last second?

That's the one thing I've always wanted to know if it's true from the age of maybe 11 I think.
 (I helped save b3ta! knockear - I socialise with x-ray eyes. Jam on it!, Tue 31 Mar 2015, 19:02, , Reply)
This is a normal post Not, not really
Not, that is, unless you can jump really, really high. If a normal person jumps in a falling lift they just end up falling slightly lower for about a second.
 (I helped save b3ta! jonbob loves you, Tue 31 Mar 2015, 19:07, , Reply)
This is a normal post If you could jump high enough and not be injured on landing
Then would there be any need to jump in the first place?
 (I helped save b3ta! tarka_dall Like normal dall, only a bit more spicy, Tue 31 Mar 2015, 19:17, , Reply)
This is a normal post High isn't exactly the right word, but hard doesn't sound quite right.

(I helped save b3ta! jonbob loves you, Tue 31 Mar 2015, 19:18, , Reply)
This is a normal post Don't forget that even if you miraculously jump at the right moment without being able to see the ground hurtling towards you the roof will crush you at 40 floors per second as the lift collapses.
Followed by the cable coiling neatly onto your exploded corpse.
 (I helped save b3ta! Jabberwoc misses D.R. and Quinch, Tue 31 Mar 2015, 19:32, , Reply)
This is a normal post
The Pink Panther seemed to manage it every week
 (I helped save b3ta! RompaStompa Stick it up your jumper, Tue 31 Mar 2015, 19:44, , Reply)
This is a normal post ^ This
And Bugs Bunny
 (I helped save b3ta! gunmetal drove slowly in the passing lane on, Tue 31 Mar 2015, 19:48, , Reply)
This is a normal post Hahaha
I had always thought this from Cartoons. Step off at the last second no damage
 (I helped save b3ta! spazzcaptain Misses Valin @, Tue 31 Mar 2015, 22:34, , Reply)
This is a normal post I thought this was about dodgy comedy duos from the seventies
I'm a bit disappointed.
 (I helped save b3ta! Nuisance Value, Tue 31 Mar 2015, 20:03, , Reply)
This is a normal post From an old ep. of Mythbusters.
I had wondered as much.
 (I helped save b3ta! sir_spicious2000 Crap I've watched: www.filmplop.blogspot.com/, Tue 31 Mar 2015, 20:30, , Reply)
This is a normal post Isn't this an animation...
..and therefore doesn't actually prove anything? Just a thought.
 (Anthony Burgess' Chocolate Orange, Tue 31 Mar 2015, 20:53, , Reply)
This is a normal post I can't really be bothered to explain,
but no. Speed is relative to time and space. The ball went from a standing start relative to its position, which was static at the time of ignition. It would therefore be doing 60 mph and would travel as such. The fact the platform is moving is immaterial.
Think of it if it fired forwards. Would the ball stay in the barrel despite all that chemical energy behind it? No. It would fire. And the same goes for backwards.
 (I helped save b3ta! TheSundaeLunch I'm a fucking shrub, alright?, Tue 31 Mar 2015, 23:53, , Reply)