Crashed it

[DeepList]

Theoretically speaking, area doesn't affect friction force. P=F/A so F=PA. Friction Force = (PA)x coef.fric. As you can see area will cancel out. The only problem is in snow, the wider the tire with more grooves, it makes it easier for snow to stick on to the tire and reduce the coefficient of friction. Skinny tires are better at displacing the snow away to the sides as it rolls.

That is true, theoretically speaking.

The amount of frictional force is proportional to the contact surface area, but it's also proportional to the pressure with which the two surfaces (the tire and the road) are pressed together. If you increase the surface area, you'll (by definition) decrease the pressure since pressure is the weight divided by the surface area. So yes, a change in the surface area will cause two counterbalancing effects. That then leaves only the weight of the object to be considered.

 

[Tommy92]

That is true, theoretically speaking.

The amount of frictional force is proportional to the contact surface area, but it's also proportional to the pressure with which the two surfaces (the tire and the road) are pressed together. If you increase the surface area, you'll (by definition) decrease the pressure since pressure is the weight divided by the surface area. So yes, a change in the surface area will cause two counterbalancing effects. That then leaves only the weight of the object to be considered.

I don't think I understand what you're saying. Surface area has nothing to do with friction force like I proved above. It's only proportional to the force which is weight, and the coefficient of friction which is given by the compound of the tire and the surface of the road.

 

[Saint]

For something like this you'd be better off in the long run not reporting it to your insurance agency, even if you did have full coverage.

In this case I had to report it, I was going to drive off but some guy stopped and pulled over on the shoulder who called the cops and they were there in no time at all. And they will be expecting to hear back from my insurance for the damage to the guard rail possibly the cops that came out were really cool and didn't write me for not having my insurance card.


I'm starting to feel the pain from that accident. My whole right side is sore :undecided:

 

[FivepointSlow]

This thread went from "I crashed into a guard rail" to "Friction and tire behavior 101" real fast.
But at least I am learning something here.. lmao

 

[Orange 94]

Theoretically speaking, area doesn't affect friction force. P=F/A so F=PA. Friction Force = (PA)x coef.fric. As you can see area will cancel out. The only problem is in snow, the wider the tire with more grooves, it makes it easier for snow to stick on to the tire and reduce the coefficient of friction. Skinny tires are better at displacing the snow away to the sides as it rolls.

I knew somebody would know some physics. Yes you are correct, I was trying to explain it simplier terms. It does have to do with the friction and weight, as well as the snow displacement.

 

[DeepList]

Surface area has nothing to do with friction force like I proved above.

In a perfect world, that's true. However, this is the real world and tires are well known as an "everyday situation". The friction is actually proportional to the area of contact and it would be dependent of the load. This is because friction is an adhesive effect between the surfaces that are in contact. Friction is not a constant value like they teach you in physics class, especially for viscoelastics like rubber tires. The surfaces aren't perfectly smooth. The "contact patch" area of the tire to the road can also depend on things like the tire pressure, deformation of the sidewalls, and temperature.

 

[MustangChris]

well shit.

hope everyone's okay...


shit.

 

[Ferocious]

Damn, I'm sorry to see this!

Hope everything works out for ya bud.

 

[g36 monkey]

Sorry to see that, I know you've been really making strides lately with it too!

 

[Saint]

Damn, I'm sorry to see this!

Hope everything works out for ya bud.

Thanks man! I'm just pressing on and not letting it get to me or anything. It'll give me time to get the wheels ready for it.

Sorry to see that, I know you've been really making strides lately with it too!

I know it really was coming along. Now I'm about to have to drop cash for suspension mods on getting it back how it was.

 

[krazyrabbit]

Well, shit. Sorry about the wreck but glad you weren't seriously hurt. At least it's recoverable!

 

[Rallim]

Crash is teh suck. Feex!

 

[SMOKEDYA]

Noooooooooo!


Wait, you were going to put wider tires on for more traction on ice? No... You but narrower tires on for traction on ice. Fat ones will be worse.

Just what I was about to say.

 

[SMOKEDYA]

Sucks to see,glad your ok tho!!!!

 

[Saint]

Just what I was about to say.

I guess having wider tires makes it "feel" as if I have more control because the steering wheel doesn't feel so damn LOOSE! When I had my 17x9's on the car for a weekend the steering felt nice and tight.

In my GT the steering is tight. But when I put the stock wheels on it feels crazy loose. So it happens on both cars.....wide tires= tight steering........narrow tires = loose steering.

 

[GMSMOKR]

Wow..The main thing is, that you are ok...I'm sorry to hear about that..wow!!


Sent from my iPad using Tapatalk

 

[SMOKEDYA]

I guess having wider tires makes it "feel" as if I have more control because the steering wheel doesn't feel so damn LOOSE! When I had my 17x9's on the car for a weekend the steering felt nice and tight.

In my GT the steering is tight. But when I put the stock wheels on it feels crazy loose. So it happens on both cars.....wide tires= tight steering........narrow tires = loose steering.

Smaller/narrower tire easier to turn=sloppy feel. Wider tire more contact with road=tight feel?? No matter what all that matters is like everyone else says your ok.

 

[Shaggy]

I always figured thinner tires, more weight dispersed within that thinner tire rather then it spreading out over more area. So the tire can cut into the snow/ice and get a better grip. I would rather have pizza cutters for wheels then the pizza pan. Either way, glad you and your stang weren't totaled.

 

[RonBurgandy]

Guard rails are tricky they got.me too. Little bastards. Atleast you don't have to replace the radiator like I did. And just some advice. Take it somewhere if I had to replace it again I'd apend the money just to get rid of a headache

Brought to you from a a land far far far very far veryy very far away

 

[330CubeGt]

Fugg that sucks man, atleast it was ju st a v6 and your ok