Background Paragraph: Extending the period of time over which a force acts in order to lessen the force is a common practice in design. Padding in shoes and seats allows the time to increase. The front of automobiles are designed to crumple in an accident; this increases the time the car takes to stop. Similarly, barrels of water or sand in front of abutments on the highway and airbags serve to slow down the stoppage time. These changes all serve to decrease the amount of force it takes to stop the momentum in a car crash, which consequently saves lives. 
Story: Keith designs car seats. He noticed that some other car seats didn't have any padding. He marked it as case A. On the other hand, most of the seats he designed had padding. He marked it as case B. Keith needed to know pros and cons of both designs.
Which case would exert less force, case A or case B? Which case would exert more force, case A or case B? Which case would more likely make products safer, case A or case B? Which case would more likely make products unsafe, case A or case B? Which case would take less time for the force to act, case A or case B? Which case would take more time for the force to act, case A or case B? Would case A exert less or more force than case B? Would case A take less or more time for the force to act than case B? Would case B exert less or more force than case A? Would case B take less or more time for the force to act than case A?