Truck Smart is a partner of Zero Fatalities. In this video you will see a semi truck and a dump truck try to come to a complete stop in comparison with a passenger vehicle. The first demonstration is with an empty Semi-truck traveling at 35 mph. Normally these big rigs will be traveling at 65 mph and will be towing 80,000 pounds. The second is with a loaded dump truck traveling at only 25 mph. This will put it in to perspective and demonstrate that you really should leave these big rigs a good amount of distance to be able to stop.