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Cars We Drive! - Page 1572

post #23566 of 27004
Glad it saved you. That was nasty. You are fortunate to walk away from it.
Take care out there.
post #23567 of 27004
In CG's scenario above, is that the same as getting rear ended while stationary by a car going 20 MPH?
post #23568 of 27004
Nope. If you are Stationary, and rear ended. The innersia is stoppped with you. When rear ended while travelling at speed, you would lose control, and be part of a high speed gyroscopic calamity. Ultimately coming to an abrupt stop. Luckily it looks like he hit weeds, not steel or concrete.

Really, could have been much worse.
post #23569 of 27004
Quote:
Originally Posted by GreenFrog View Post

In CG's scenario above, is that the same as getting rear ended while stationary by a car going 20 MPH?

Yes and no. Obviously there is some danger at that speed of losing control like Vader said. However by moving you increase the contact time and decrease the impulse.
post #23570 of 27004
I have an Audi in my fleet. So glad you are safe and able to walk away unharmed
Angels were definitely on you.
post #23571 of 27004
Quote:
Originally Posted by Cary Grant View Post

Can we change this thread to Cars We Used To Drive?

Holy crap! Glad you are ok.

Sidenote: Why do so many Minnesotans drive audis? Just an observation Ive made
post #23572 of 27004
Damn CG, glad you're okay, but like was said, get a thorough physical evaluation. I mean thorough; a brain MRI should be on order (don't settle for a CT). Any sort of pain/discomfort, and physical therapy should be on the list.
post #23573 of 27004
Quote:
Originally Posted by GreenFrog View Post

In CG's scenario above, is that the same as getting rear ended while stationary by a car going 20 MPH?

Well, not the same as a car because of the huge mass delta with a freight truck, but from a physics standpoint it is the same linearly (assuming the stationary car is in drive and not park or neutral).

What Vader and brokencycle said about losing control / spinning is obviously different (explained a bit below - the impulse is the same, but the consequences are different from a loss of control standpoint)

Impulse would be the same in both cases however because the relative velocity delta and in turn the momentum delta are the same - i.e. the reference frame is the same.

Edit: To add additional clarification, the t1-t2 (the time the truck would be imparting a force on the car) would be the same because of the reference frames being the same. Should also add, at 60 mph, the car is being accelerated beyond 60 mph by some amount. At 0 mph, the car is being accelerated beyond 0 mph by roughly the same amount, so the dangers that come with that would be different as well.

Edit2: OCD me - there would some minor differences in accounting for static and kinetic coefficients of friction of the tires and any aerodynamic effects at speed - but those would be near trivial in this case.

tl;dr: Physics wise, it's roughly the same with the exception that you're being asked to control a car being plunked into at 60 mph vs. 0 mph and we all have reaction times.
Edited by ramuman - 7/24/16 at 3:03pm
post #23574 of 27004
Quote:
Originally Posted by Al9146 View Post

I love lightweight cars. I hope it comes out for you.

In dreamland, I'd have a very large garage and one of these would be in it. I chuckled at the writing. lol!

http://jalopnik.com/the-new-porsche-911-gt2-rs-looks-like-it-wants-to-kick-1784133615?rev=1469205520961&utm_campaign=socialflow_jalopnik_facebook&utm_source=jalopnik_facebook&utm_medium=socialflow

"Rumors also speculate that it will have a manual gearbox, so rejoice! If you’re going to order a car that wants to put you backwards into a tree at all times, you can’t make anything easier on yourself on principle. Three pedals or bust."


Hahahahaha
post #23575 of 27004
They are going to put manuals in all the 991.2 GT cars and really piss off the people who paid a million dollars for a 911R lol8[1].gif
post #23576 of 27004
Nike and Porsche should join forces and mass troll people out of even more money.
post #23577 of 27004
Quote:
Originally Posted by Find Finn View Post

Nike and Porsche should join forces and mass troll people out of even more money.

Could you imagine the collector value of a Porsche 911 GT2 RS Nike in Michael Jordan Bulls red metallic?
post #23578 of 27004
I can imagine the lines outside the shop.
post #23579 of 27004
Quote:
Originally Posted by Find Finn View Post

I can imagine the lines outside the shop.

There would be white collar muggings over it. You'd probably get beat up at your Harvard reunion and have the keys stolen.
post #23580 of 27004
Quote:
Originally Posted by nootje View Post

Did you check with a doc or hospital for whiplash? That shit can manifest itself days later and can become a real pain, and hard to attribute to the crash weeks later.. With that type of crash it's a real possibility..

Seeing the doc tomorrow to set a baseline.
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