Suddenly i dont feel so safe :(
#61
Yay physics!
ThomP is EXACTLY CORRECT. A car hitting the mirror image of itself is the same as that car hitting a non-deformable barrier.
The "mirror cars" are equal and opposite forces. The same thing happens when one of the cars hits a wall that does not move or deform, an equal and opposite force has been applied to the car.
Change the mass or speed of any car and you will need to do a Google search on the principals of "conservation of momentum" and impulse. (because I don't want to type all that here!)
We can visualize with the videos below...
http://www.youtube.com/watch?v=gfY3VvDsQxg Honda
http://www.youtube.com/watch?v=vcTf78b8WfY Toyota
http://www.youtube.com/watch?v=Lg64wMtl2gQ Merc/Smart
...Note, the Accord and Fit have the least difference in weight, see how the fit stops fairly quickly
...Now, the Merc is MASSIVE and the Smart is very light, conservation of momentum, see how the Merc continues on after the collision with a decent forward velocity. See how the Smart incurs extreme deceleration and then accelerates and is thrown back off the Merc.
My observations and thoughts:
Pit the Fit against the heavy Merc it will look more like the smart car. Though I would still prefer the fit because of the extra mass. The smart cars are extremely rigid, they use other cars crumple zones because they basically don't have one. The problem with smart cars because they are so light is IMPULSE, they are tossed around in a collision and the extreme gforces (acceleration forces) that imparts to the driver is damaging.
Note that the Camry ONLY received an acceptable rating, against a tiny Yaris!! That Yaris would be sooo dead against that Merc.
All things considered I would choose the Fit.
(Oh and hello, how is my first post )
edit => Be glad you don't drive this => http://www.youtube.com/watch?v=Ukq-UUQAcZs
Last edited by kiwi133; 04-14-2009 at 09:19 PM. Reason: lol
#63
1) I will not be so proud of being a Japanese car owner
2) I will be driving a dosmestic
3) I will not be on this forum
#64
1) Mercedes, BMW, Land Rovers... Its a social status thing - heck the drivers prolly never use the 4WD feature on it.
2) Most housewives still think SUVs give better visibility and are safer for their family and kids... at the end, housewives make the call for purchase, husband only pays the bill~
Try driving into Vancouver city and you see theres actually a lot of small cars around.. drive into downtown Vancouer and u virtually dun see big cars
Last edited by Guinness; 04-14-2009 at 09:40 PM.
#67
size matters in avoidance, too. So do contemporary safety features
Would I prefer to be in 2009 Accord instead of a 2009 Fit in an offset or side collision?
Yes - but what would I prefer to be driving when trying to avoid such a collision in the first place?
The same characteristics that make a Fit easier to park and maneuver than an Accord can provide a driver more choice when trying to avoid a collision. This can make a difference when having to shoot a narrow gap in a fast-moving situation.
Also, the report dismisses the many new safety features that make a 2009 Honda anything safer than any of the models offered by anyone in decades past.
Yes - but what would I prefer to be driving when trying to avoid such a collision in the first place?
The same characteristics that make a Fit easier to park and maneuver than an Accord can provide a driver more choice when trying to avoid a collision. This can make a difference when having to shoot a narrow gap in a fast-moving situation.
Also, the report dismisses the many new safety features that make a 2009 Honda anything safer than any of the models offered by anyone in decades past.
#69
Maybe cos u are at Richmond BC? Not being racist (I am chinese myself), but a lot of chinese are buying BIG cars because of two reasons:
1) Mercedes, BMW, Land Rovers... Its a social status thing - heck the drivers prolly never use the 4WD feature on it.
2) Most housewives still think SUVs give better visibility and are safer for their family and kids... at the end, housewives make the call for purchase, husband only pays the bill~
Try driving into Vancouver city and you see theres actually a lot of small cars around.. drive into downtown Vancouer and u virtually dun see big cars
1) Mercedes, BMW, Land Rovers... Its a social status thing - heck the drivers prolly never use the 4WD feature on it.
2) Most housewives still think SUVs give better visibility and are safer for their family and kids... at the end, housewives make the call for purchase, husband only pays the bill~
Try driving into Vancouver city and you see theres actually a lot of small cars around.. drive into downtown Vancouer and u virtually dun see big cars
#71
Interesting, the USA Today article has revised its text, no longer saying that it's equivalent to a 80 mph closing speed, much as has been disclaimed here. They now say
Barrier tests, in effect, show how a car holds up crashing into one like itself, Lund says. These tests show colliding with a larger car at the same effective speed as the barrier test.
Thread
Thread Starter
Forum
Replies
Last Post
Blaw
Other Car Related Discussions
6
09-18-2007 01:44 AM