Quote:
Originally Posted by seeric
That host is clearly not a physics major.
Worst case scenario he says "Two cars colliding head on at 120mph".
Physically speaking the test they did is nothing close to two cars colliding into each other with BOTH of the cars moving at 120 MPH.
By crashing the car into a stationary object, to get the impact that two cars traveling at 120 mph would generate you'd have to get the sole car up to 240 mph, wouldn't you?
Speaking from a pure linear momentum perspective, what the host said they were going to demostrate is not what they did with that test.
Also, the mass of the wall is completely different than the mass of a vehicle, not to mention stationary and immovable. Changes everything.
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car @ 120mph + immovable concrete block = car gets all the damage and ends up like the one in the video
car @ 120mph + car @ 120mph= both cars
share the damage and both end up like the one in the video
presenter was wrong saying it replicated 2 cars doing 60mph each
you're wrong saying they would need 240mph + concrete to replicate 120mph+120mph crash.