Before you get the tissues out......

[Big RICHARD]

Trees are that strong and a lamp post might make that mess in a high speed impact as it doesn't have enough time to flex before lots of car is bent........

[kaillum]

good point Rich..

[Barakka]

Looks bad from the front too.... i've head of tucking the back end in but that's ridiculous....

Ouch !
Hope the tree was OK

Barakka

PS - There's a whole gallery full of Skylines ...
http://www.wreckedexotics.com/skyline/

[Trash Man]

Anyone who can get a Skyline that out of control should not be allowed to drive on public roads.

[[GSV]Trig]

Either that or they should play with electrics they dont understand...

[Knoxville]

Is it just me or is that one waaaaaaaaay to similar to be a coincidence...........

[Nemeliza]

Maybe they were following each other lol

[kaillum]

yay..

*me sings "another one bites the dust... another one bites the dust... and another one down and another one down... another one bits the dust"

anyone got any more piccy's off broken skylines? makes me feel all warm inside...

/obviously not for the people who were inside the cars.. they must have hurt like hell.. just for the cars you understand...

[[GSV]Trig]

Originally posted by Knoxville
Is it just me or is that one waaaaaaaaay to similar to be a coincidence...........

Maybe its a common design fault

[gumbossos]

active tree finder installed.

lamp post might make that mess in a high speed impact as it doesn't have enough time to flex before lots of car is bent........

physics doesnt work like that mate! stuff doesn't get harder because somethings hit it with more force - it just bends faster.

[Big RICHARD]

I do know what I'm talking about, I'm an Engineer.

F=m.a

and s = u.t + 1/2.a.t^2

so a = 2(s - u.t)/(t^2)

say s = 1 metre u = 30 m/s and t = .25 seconds.

a = 2(1 - 30*0.25)/(.25^2)

= 13/0.0625 = 208m/s^2

say the car weighs 1.25 tons

F = 1250 * 208 = 260000 Newtons required to stop car.

This would knock the lamp post over afterwards, but the time required for the lamp post to move sufficiently is not available.

Remember Newtons laws of motion?

'Every action has an equal and opposite reaction'

[[GSV]Trig]

That looks real pretty but wtf does it mean?

[Big RICHARD]

F = Force(N)
m = mass(Kg)
a = acceleration(m/s/s or m/s^2)
s = distance travelled(m)
u = velocity before acceleration (or deceleration) (m/s)
t = time(sec)

The equations above are just the standard force and acceleration relationship equation and one of the standard acceleration equations that relates to distance travelled in time, t when changing from speed u and accelerating constantly at a rate a.

The acceleration will not be constant throughout the crash, but can be assumed to take the average value to calculate the forces involved. In fact the peak force will probably be higher. You could also get a value from the equations of impact response.

[kaillum]

ok.. and again that looks real interesting...

but WTF does it mean

[gumbossos]

now ive thought about it a bit more ,and its no longer the mornin', so i've read what you've said properly, i took the wrong end of the stick. however in you calculation you state an acceleration of 208m/s^2, this is a silly amount of acceleration equating to an increase of 465mph per second. this is also considering the car would be decelerating into the post. plus this still doesnt prove the point you're trying to make.

[Big RICHARD]

It is a calculation of the force on the car if the lamp post didn't move, which it wouldn't in a high speed impact, as it is rooted deep into the ground. The impact force would cause the damage seen above to the car and more than likely bring the lamp post down afterwards.

Trees often survive high speed car impacts.

Someone mentioned that because the lamp post would fall over then the car could not have crashed into a lamp post, when in fact it could.