Quote:
Originally Posted by Tog_
...the stunt where a car is driven up onto a moving trailer. If the trailer is going 30 units of choice per hour, and the car is doing 33, the car will overtake the trailer at 3 units per hour, but as soon as the car hits the trailer the tires will be going 33 relative to the trailer, and thus accelerate to 63 relative to the ground, assuming the driver does not back off of the throttle. Is this right?...
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The TV show Mythbusters investigated this in the 2007 episode "Big Rig Myths", the segment title was "Knight Rider Ramp".
They found at both 30 mph and 55 mph, you could safely drive a car on and off a ramp to a moving semi trailer.
http://en.wikipedia.org/wiki/MythBus...ght_Rider_Ramp