• Apply Newton's laws

Scenario

Your supervisors at A&L Engineering have tasked you with evaluating the durability of three common materials used in the design of cell phone cases. For each material type, you have been asked to determine the force of impact of a phone dropped from a set height above the ground. Using the mass of each case and the collision time, determine the force of impact on each case material and determine which case material offers the most protection.

To facilitate your analysis, you have been provided with specifications for case materials in the table below. However, you may also use your own figures for the mass of phones and test case materials. If you do use a different figure, be sure to make that clear in your analysis. As you use this data, ensure that you have made the necessary SI unit conversions:

Test Collision Mass Material Time Phone 6.2 0.01 Only (No OZ. seconds Case) 1.7 0.05 Silicone OZ. seconds Hard 1.1 0.03 Plastic OZ. seconds 3.2 0.08 Rubber OZ. seconds