topgear test of s60r

[Dan F]

Sky and the BBC have come to an arrangment whereby you will not need a card to watch the free-to-air channels on a dish anymore.

Have a look here:

http://www.digitalspy.co.uk/article/ds11204.html

And there are more links at the bottom of that page to articles about the BBC going 'in the clear' on Sky.

Cheers,
Dan.

[Dan F]

My guess is he, or rather his team of researchers, won't bother.

I have e-mailed numerous times and only ever received an automated response.

Dan.

[SG]

>Yes energy is preserved, always. You can't get rid of it you
>can only change it. When a big car hits a small car or vice
>versa a large proportion of the energy is transfered to the
>small car. It will stop and go the other way, where as the
>large car will carry on going in the original direction -
>providing the difference in mass is sufficient. Yess you
>dissapate energy through both parties, but the energy is
>propertionl to the mass of the vehicle. If my car is twice
>the wieght of yours then you get twice the accident.
>
>Test this your self. Get a small corgi car and a larger car
>(BBurago or similar) and run them towards each other. Whent
>eh collide the BBurago will continue forwards the Corgi car
>will go backwards. This is the princicple of larger cars
>being safer in collisions. Or try throwing a stone at a
>brick. Stone bounces brick doesn't move. Or jump against a
>wall - you bounce, the wall doesn't move enough to be
>measured.
>
>People carriers are less safe when rolling etc, not when
>hitting a smaller car (unless a very unsafe design), and as
>you point out as their center of gravity is higher they topple
>easier.
>
>Anyway lets just hope we never need the saftey....
>
>Stu
>
>As for the force through the passengers: in an accident their
>are three impacts
>
>1) The cars hit each other
>2) The passengers hit the car
>3) The passengers internal organs hit the skeleton / skin and
>do bad things.
>
>If the passenger do not feel movement (as in my parents
>accident) then accidents 2 and 3 do not happen. This is the
>reason for racing harnesses it stops accident 2 to a great
>extent.


Sorry to keep going on about this, but...

Your toy car scenario is an example of an (almost) elastic collision. The forces involved aren't sufficient to deform either car which in turn means that there is no dissipative force acting during the collision and that all of the kinetic energy of the objects before the collision is still in the form of kinetic energy afterwards.

The problem is that real cars deform in a collision (i.e. the collision is inelastic).

When two objects collide, both objects experience an impact force. The magnitude of the force experienced is the **SAME** for both objects irrespective of mass (because for every action there is an equal and opposite reaction). At the point of impact in a real crash, it doesn't matter one jot how heavy your car is, what matters is how your car handles the impact force. That is what the NCAP tests are meant to show.

Errm No. Otherwise if you hit a lorry into car the lorry driver would die as ther are virtually no safety systems in a lorry. However what genertally happens is that it doesn't even slow down that much when hitting a car. Same goes for big car vs small car. The reason my parents omega didn't move is the the car that hit them didn't have enough mass to move it, it took the accident - shown by the fact that the other car *did* deform to such an extent that it was totalled, against purely panel damage for my parents car. The deforming may take some of the enertia away, but the fact remains that when you have unequal masses the forces will be different, the smaller car will be dissapating more energy than the larger car.

Anyway that's all I am sayoing on the subject.

Stu

Hi there, I didn't see the top gear show but everyone has their own veiws, I personally don't care if its under powered, if you drive it too fast nobody will be able to see it long enought to see how beautiful the car really is, I have an 855 but in my opinion the S60 is the best looking car on the road today. Just look at the bmw 3 series their everywhere, the S60 really stands out, I love them and want one, you'll all know when I have one because I'll be the big bloke with the really big smile.
Steven Malkin (UK)