1. Velocity before impact Based on my calculations we can see that the force the velocity before impact has remained constant in each scenario. This is because the velocity before impact is dependent on the height from which the mass is dropped and since that height is constant the velocity is CDHStIiL 2. Acceleration During my calculations, the acceleration of the objects did not change because I used the standard free fall motion of acceleration due to gravity. 3. Force Since velocity is constant it has no impact on the force. The force is however correlated to the mass of the object and inversely correlated to the collision time. Based on my analysis the rubber case resulE in the lowest impact force on the phone with an impressive 18.313I force of imp act. I would recommend the rubber phone case when recommended material for a cell phone case. This recommendation is considering the protection that it provides the phone, the low cost of the material, and the easy accessibility of the material