1.1 What’s it about 1.2 What you will be doing. Chapter 1 2 L cosΘ 0 Introduction L cosΘ A B C P 3 ∆ ∆ 0= Chapter 1 4 F θ cos ⋅ f s – 0= and R F θ sin ⋅ – 0= Force/Deformation of the spring: For ourlinear spring, we can write: 2F θ P – sin ⋅ 0= or F P 2 θ sin ( )⁄ = f s k u ⋅ = The force is proportional to deformation. Θ B C P Introduction R 5