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amazinghl
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Am I right or is NHTSA right?
In http://www.nhtsa.com/cars/testing/ncap/Info.html#iq8 they stated,
For testing frontal collisions, crash-test dummies are placed in driver and front passenger seats and secured with the vehicle's seat belts. Vehicles are crashed into a fixed barrier at 35 miles per hour (mph), which is equivalent to a head-on collision between two similar vehicles each moving at 35 mph. Since the test reflects a crash between two similar vehicles, make sure you compare vehicles from the same weight class, ± 250 lbs., when looking at frontal crash protection ratings.
I thought the difference of head-on with a car and crashing to the wall is
Car A 100N ---> <--- 100N Car B
Then you have the reaction force coming back at you.
Car A 100N <--- ---> 100N Car B
Thus if I'm in car A, I will have the 100N from car B AND the reactional force of 100N from my own car, which adds up to a total of 200N for EACH car.
VS.
| <--- 100N Vehicle
| ---> 100N Wall
I just have the 100N from the reactional force of the wall.
Which make that "Vehicles are crashed into a fixed barrier at 35 miles per hour (mph), which is equivalent to a head-on collision between two similar vehicles each moving at 35 mph." wrong.
Am I right or are they right?
Thanks for your time.
In http://www.nhtsa.com/cars/testing/ncap/Info.html#iq8 they stated,
For testing frontal collisions, crash-test dummies are placed in driver and front passenger seats and secured with the vehicle's seat belts. Vehicles are crashed into a fixed barrier at 35 miles per hour (mph), which is equivalent to a head-on collision between two similar vehicles each moving at 35 mph. Since the test reflects a crash between two similar vehicles, make sure you compare vehicles from the same weight class, ± 250 lbs., when looking at frontal crash protection ratings.
I thought the difference of head-on with a car and crashing to the wall is
Car A 100N ---> <--- 100N Car B
Then you have the reaction force coming back at you.
Car A 100N <--- ---> 100N Car B
Thus if I'm in car A, I will have the 100N from car B AND the reactional force of 100N from my own car, which adds up to a total of 200N for EACH car.
VS.
| <--- 100N Vehicle
| ---> 100N Wall
I just have the 100N from the reactional force of the wall.
Which make that "Vehicles are crashed into a fixed barrier at 35 miles per hour (mph), which is equivalent to a head-on collision between two similar vehicles each moving at 35 mph." wrong.
Am I right or are they right?
Thanks for your time.
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