1. The problem statement, all variables and given/known data To help reduce the severity of accidents, an engineering company designs large plastic barrels filled with antifreeze that can be placed in front of bridge supports. In a simple test, a 1200 kg car moving at 20 m/s [W] crashes into several barrels. The car slows down to 8.0 m/s [W] in 0.40 s. a) Find the average net force acting on the car during the collision. I was comparing answers with a friend of mine and his final answer was 36000 N [W] and I got 36000 N [E] I think I'm right, since 36000N [W] doesn't make any sense, the car would of had to be driving E for that to happen. Then again, I'm unsure so I would like to have a second opinion/correction. 2. Relevant equations 3. The attempt at a solution Check the attachment.