1. The problem statement, all variables and given/known data A large box containing your new computer sits on the bed of your pickup truck. You are stopped at a red light. The light turns green and you stomp on the gas and the truck accelerates. To your horror, the box starts to slide toward the back of the truck. (Assume that the truck is accelerating to the right.) Draw clearly labeled free-body diagram for the truck. (The bed of the truck is not frictionless.) 2. Relevant equations N normal force Wt Weight of the truck fk is friction force of the box on the truck bed Froad is the reaction force to the tires backward push nb is the reaction to the normal force on the box from the truck 3. The attempt at a solution I got N going upward Wt going downward nb going downard fk going to the right (forward) Froad going to the right (forward) However, it's not the correct answer. Anyone could explain to me what I got wrong here? Thanks.