Informative Speech: Interpreting Skid Marks Type: Explanation Sequential & Causation

1. Friction Coefficient of Road Surface

1.1. Effect of surface

1.2. Effect of speed

1.3. Effect of elevation

1.4. Effect of wet vs. dry

2. Converting Between fps (feet per second) and mph (miles per hour)

3. Formulas

3.1. square root ( 30 x d x f x e)

3.2. KE = 1/2 x m x v^2

4. Types of Skid Marks

4.1. Scuffs

4.2. Yaw marks

4.3. Skids

4.4. Prints

4.5. Scrub mark

5. Braking Efficiency

5.1. Weight transfer from rear to front

5.2. Damaged braking systems

5.3. ABS effect on braking efficiency