• Small Pickup Truck VS Sand
    36 replies, posted
[video=youtube;beo5t2S_05E]http://www.youtube.com/watch?v=beo5t2S_05E[/video]
I did not expect that to go so well.
Jesus! Balls of steel man! Can you imagine pretending you'd live in a roll back down that?!
That's actually quite a popular activity over in Saudi Arabia and other places with dunes. Basically the goal is to get a 4WD vehicle and go "Dune Crashing" which is essentially a rollercoaster ride across sand dunes. I've always wanted to do it, especially now that I've got a Jeep Wrangler. My boss's sister just did this a few weeks ago; she sent a video and I have to say it looked like a huge amount of fun.
he's using the technology of skyrim horses [t]http://www.isolaillyon.it/wp-content/uploads/2014/02/Skyrim_horse.jpg[/t]
[QUOTE=Bredirish123;44841218]That's actually quite a popular activity over in Saudi Arabia and other places with dunes. Basically the goal is to get a 4WD vehicle and go "Dune Crashing" which is essentially a rollercoaster ride across sand dunes. I've always wanted to do it, especially now that I've got a Jeep Wrangler. My boss's sister just did this a few weeks ago; she sent a video and I have to say it looked like a huge amount of fun.[/QUOTE] I've done that - it's quite fun although there are some heart stopping moments when you fly off the edge of the dune and look through the windshield to see how far down the dune goes. That having been said, that looks to be (possibly) a Toyota Hilux truck. Those things are fucking tanks - pretty much most backwater area has a few of those and loads of the old Nissan Patrols - god those things look badass.
That's what we usually do in winters here in Dubai but not that fast!
Momentum! p=mv, and the more v you have, the better! Also, K=1/2mv^2 and U=mgh, so to get to the top you need K=U, so 1/2v^2=gh; if h is big (in this case it is a huge dune) so you need a lot of v (again) sorry just took AP Physics Mechanics exam last week
[QUOTE=Chinook249;44842851]Momentum! p=mv, and the more v you have, the better! Also, K=1/2mv^2 and U=mgh, so to get to the top you need K=U, so 1/2v^2=gh; if h is big (in this case it is a huge dune) so you need a lot of v (again) sorry just took AP Physics Mechanics exam last week[/QUOTE] You forgot to account for the moment of inertia of the tires and the fact there's an engine providing more energy.
[QUOTE=Amaurus;44842912]You forgot to account for the moment of inertia of the tires and the fact there's an engine providing more energy.[/QUOTE] Hell if we are going full engineering on this, There are also frictional losses in the transmission. and the rolling resistance would be massive on sand as each tyre has a large contact area with the sand. Also the sand is not a firm surface, so it acts as a very viscous fluid which is slippery so the wheel will have to overcome that. Those are more things the engine torque + gravity on the downhill slope would have to overcome.
Small trucks=best trucks Trucks are stupid big these days
[QUOTE=Chinook249;44842851]Momentum! p=mv, and the more v you have, the better! Also, K=1/2mv^2 and U=mgh, so to get to the top you need K=U, so 1/2v^2=gh; if h is big (in this case it is a huge dune) so you need a lot of v (again) sorry just took AP Physics Mechanics exam last week[/QUOTE] Wow, look at this scientist
[QUOTE=Jimpy;44840787]I did not expect that to go so well.[/QUOTE] I was fully prepared for either a horrible sand avalanche or a terrible rollover I'm both relieved and impressed
[QUOTE=Chinook249;44842851]Momentum! p=mv, and the more v you have, the better! Also, K=1/2mv^2 and U=mgh, so to get to the top you need K=U, so 1/2v^2=gh; if h is big (in this case it is a huge dune) so you need a lot of v (again) sorry just took AP Physics Mechanics exam last week[/QUOTE] First year in high school sure was hard.
[QUOTE=Chinook249;44842851]Momentum! p=mv, and the more v you have, the better! Also, K=1/2mv^2 and U=mgh, so to get to the top you need K=U, so 1/2v^2=gh; if h is big (in this case it is a huge dune) so you need a lot of v (again) sorry just took AP Physics Mechanics exam last week[/QUOTE] [QUOTE=Amaurus;44842912]You forgot to account for the moment of inertia of the tires and the fact there's an engine providing more energy.[/QUOTE] aka he is giving you an F for failed.
[QUOTE=Chinook249;44842851]Momentum! p=mv, and the more v you have, the better! Also, K=1/2mv^2 and U=mgh, so to get to the top you need K=U, so 1/2v^2=gh; if h is big (in this case it is a huge dune) so you need a lot of v (again) sorry just took AP Physics Mechanics exam last week[/QUOTE] Sorry E=sqrt((pc)^2+(mc^2)^2) you didn't pass.
[QUOTE=Falubii;44849939]Sorry E=sqrt((pc)^2+(mc^2)^2) you didn't pass.[/QUOTE] That equation is completely irrelevant. Stop trying so hard to look smart; its not working.
e=mc^2 so obviously i knew he was going to make it
4+gopeddal=vroomfast Took me a bit but according to this he almost didn't make it.
Clarkson would be proud. And also so terrified some poo would come out if he were driving that thing.
[video=youtube;-c_7fRq_19s]http://www.youtube.com/watch?v=-c_7fRq_19s[/video]
[QUOTE=Qubit;44855060]That equation is completely irrelevant. Stop trying so hard to look smart; its not working.[/QUOTE] lol I'm joking, take the stick out of your ass. I'm a physics major.
[QUOTE=Falubii;44873866]lol I'm joking, take the stick out of your ass. I'm a physics major.[/QUOTE] haha I was only pretending to be retarded
[QUOTE=katbug;44873904]If this is true then you have zero grasp of humor and should stop trying before you hurt yourself[/QUOTE] He originally posted some thing about gravitational potential and the kinetic energy of the car, and was clearly not serious about the physics involved, then some guy says: [QUOTE=Amaurus;44842912]You forgot to account for the moment of inertia of the tires and the fact there's an engine providing more energy.[/QUOTE] So, I decided to say that he failed to account for the relativistic effects so his kinetic energy calculation was wrong. I should probably explain further because you're having some trouble understanding :) Because the original guy wasn't serious, there was no reason to mention rotational dynamics. I was making a quip at that post by saying he failed to account for Special Relativity. Basically I was trying to make this joke. [QUOTE=urbanmonkey;44855224]e=mc^2 so obviously i knew he was going to make it[/QUOTE] I'm sorry that this confused you and made you so upset that you had to actually post about how dumb I am. Edit: [QUOTE=katbug;44873904]haha I was only pretending to be retarded[/QUOTE] Interesting edit, you really are a sad person. I don't really care whether or not you believe that I understand the regime that Special Relativity needs to be applied in.
plebs not accounting for each particle interaction don't tell me you haven't memorized this equation for your exams yet? [img_thumb]http://assets.openstudy.com/updates/attachments/4f875638e4b0505bf086e3b4-standardmodel-1334269559764-standardmodelequation.jpg[/img_thumb]
Saudi + arabia = money Still nothing compared to their drifting [video=youtube_share;dGt0RnZcO88]http://youtu.be/dGt0RnZcO88[/video]
[QUOTE=Falubii;44873938] Interesting edit, you really are a sad person. I don't really care whether or not you believe that I understand the regime that Special Relativity needs to be applied in.[/QUOTE] SR has as much bearing on this situation as does the flux in mass of the earth when determining whether a plane will be able to fly. If you're going to be that anal you might as well mention individual particle's interactions, rubber falling off the tires, and the amount of drag that the chip of paint dave's skateboard took off creates.
[QUOTE=katbug;44874151]SR has as much bearing on this situation as does the flux in mass of the earth when determining whether a plane will be able to fly.[/QUOTE] And that's the joke. I was pretty much trying to say what UrbanMonkey said. Some reason everyone flipped the fuck out and are attacking my intelligence over it. [editline]21st May 2014[/editline] [QUOTE=katbug;44874151]SR has as much bearing on this situation as does the flux in mass of the earth when determining whether a plane will be able to fly.[/QUOTE] Also, you can explain what you mean by that? I'm inclined to think that you mean gravitational flux, which is proportional to the gravitational field. The gravitational field is definitely a factor in whether or not a plane will fly.
[QUOTE=Falubii;44874190]And that's the joke. I was pretty much trying to say what UrbanMonkey said. Some reason everyone flipped the fuck out and are attacking my intelligence over it. [editline]21st May 2014[/editline] Also, you can explain what you mean by that? I'm inclined to think that you mean gravitational flux, which is proportional to the gravitational field. The gravitational field is definitely a factor in whether or not a plane will fly.[/QUOTE] Of course the fucking gravitational field is important. Stop trying to appear so "better than" I meant flux of the mass of the earth, caused by other bodies crashing into earth/mass leaving, which would effect gravity; but to a point that is so inconsequential nobody even considers it. You need to work on your humor, because when you get so specific, with NO hints whatsoever that you're joking, people are going to assume (usually rightly) that you're bandwagoning and have no idea what the fuck you're talking about.
[QUOTE=katbug;44874249]Of course the fucking gravitational field is important. Stop trying to appear so "better than" I meant flux of the mass of the earth, caused by other bodies crashing into earth/mass leaving, which would effect gravity; but to a point that is so inconsequential nobody even considers it.[/QUOTE] You still think I'm just trying to dazzle you with knowledge? Stop being so immature. I tried to make a joke, maybe it wasn't absolutely fucking hilarious, but for some reason you are being an absolute asshole to me about it. [QUOTE=katbug;44874249]You need to work on your humor, because when you get so specific, with NO hints whatsoever that you're joking, people are going to assume ([B]usually rightly[/B]) that you're bandwagoning and have no idea what the fuck you're talking about.[/QUOTE] Again, what's with the personal attacks? You keep acting like you somehow know whether or not I understand the physics behind it. I have taken classes in Special Relativity and I reasonably understand it. You are being a dick plain and simple who's just trying to start shit and antagonize me. I'm done here.
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