In a crash, the car, you and anything else are all separate objects. Crash designers attempt to couple you to the car via your seatbelt and airbag. Rocks are free-floating.
When you crash, the car experiences a sudden deceleration. You’re moving forward and the rocks are moving forward. The rocks will move forward until they hit the windshield and then they will bounce. They will also receive some of the energy experienced by the car’s deceleration - which is MASSIVE relative to the mass of a rock.
Depending on the size of the rocks and the speed of the crash, those rocks very well may become bullets. Especially due to their high velocity and potentially small surface area.
I feel like some person genuinely attempting to look out for the safety of someone else and being lambasted for it is wild. Follow the advice if you wish but it’s not like this is uncharted territory. Automotive engineers have been mapping crash dynamics for literal decades…
In a crash, the car, you and anything else are all separate objects. Crash designers attempt to couple you to the car via your seatbelt and airbag. Rocks are free-floating.
When you crash, the car experiences a sudden deceleration. You’re moving forward and the rocks are moving forward. The rocks will move forward until they hit the windshield and then they will bounce. They will also receive some of the energy experienced by the car’s deceleration - which is MASSIVE relative to the mass of a rock.
Depending on the size of the rocks and the speed of the crash, those rocks very well may become bullets. Especially due to their high velocity and potentially small surface area.
I feel like some person genuinely attempting to look out for the safety of someone else and being lambasted for it is wild. Follow the advice if you wish but it’s not like this is uncharted territory. Automotive engineers have been mapping crash dynamics for literal decades…