CNN CNN Newsroom With Carol Costello May 14, 2015 13:28:00
Threw the emergency brake full force, all the way down. what would we feel like if we did that right here at 70 miles per hour. >> well i will show you. >> so that's full force on the brakes at just 60 miles per hour and we're still going. >> yeah. yeah you can't apply the brakes any harder than that. >> it still doesn't stop automatically, still takes times no matter what speed. >> a fully loaded 48freight train. >> let's take it around the bend as fast as you can go and you are saying this train that derailed may have been going about 106 miles per hour so we will see what this does. >> we w...