Thread: Car physics
View Single Post
Old 17-12-2009, 04:12 PM   #58
geckoGT
Ich bin ein auslander
 
geckoGT's Avatar
 
Join Date: May 2005
Location: Loving the Endorphine Machine
Posts: 7,453
Valued Contributor: For members whose non technical contributions are worthy of recognition. - Issue reason: Always level headed and i notice him being the voice of reason when a thread may be getting heated 
Default

Quote:
Originally Posted by talk2tiny
I realise that there's no reason to trust my credibility any more than anyone else who's posted here but if you're interested, I have degrees in mathematics and theoretical physics and have almost completed a PhD in theoretical quantum physics. I can assure you that from a purely mathematical standpoint, two solid objects travelling at 100km/h towards each other results in the exact same forces as a single object travelling at 200km/h hitting a stationary object.

It's all to do with relative velocities but I won't go into the details. Those who don't believe me yet won't be swayed by a proof either. Obviously I can't speak for the effects of crumple zones and glancing collisions etc but to answer the physics part of the question, definitely aim for the wall rather than the car.
Thankyou, someone who actually knows what they are talking about in regards to the physics.

One problem, you talk of a car into a stationary object at 200 km/h, the question of the OP asked about a car traveling at 100 km/h hitting a stationary object compared to two cars in a head on both traveling at 100 km/h.

What is your opinion of the forces involved, are they equal or is one more than the other in this comparison?

Need to be real clear otherwise your answer will get picked to death and discussed for another 2 days.
__________________
Growing old is compulsory, growing up is optional!
geckoGT is offline   Reply With Quote