The impact of an automobile accident, construction accident, work accident, or a slip and fall accident can injure your back in ways you may not even be immediately aware of. When you are in a car crash, the force of a car accident equals about six tons (depending on the speed of both vehicles). This tremendous force often results in back and neck injuries. When you fall on a hard surface or fall from a height, you may also experience a significant level of force on your neck and back.