In this week you will be expected to distinguish between kinetic and static friction as well as perform calculations to determine the coefficient of friction. You will then be introduced to the idea of illustrating scenarios through use of both a force diagram and a free body diagram. We will then combine the knowledge of components of forces from previous weeks and look at how this applies to weight on an inclined plane. The final concept is Newton’s First Law of motion which requires you to understand the concept of inertia and explain safety features with reference to the law.