Originally Posted by scowl
Since you understand this so well, why don't you prove on paper that the duct tape couldn't have stopped the car?
Show all your work, please.
Okay - I finished high school, so I can do this. For ballpark calculations, let's give the car 1 meter of stopping distance, assuming the tape barrier flexes that much. So, decellerating form 60 mps to 0 over 1 meter would take 0.075 seconds.
vf=v0 + at, solve for a. accelleration = 358 m/s^2.
F=ma = 3000 lb (358 m/s^2) = 110,000 lbf.