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Contents Sign convention on the direction of acceleration and braking force Condition of the optimum acceleration and braking force distribution curve Relationship between tire friction force and gravitational acceleration Basic equation for the optimum force distribution curve Practical example for a car Analysis of the optimum force distributio curve Theoretical base for the important values of curve Conclusion sign convention on the direction of acceleration and braking force Sign convention is redefined to explain both of acceleration and braking Plus sign is for acceleration Minus sign is for braking The shape of the brake force distribution graph moves from upper-right quadrant to lower-left quadrant. it is a point symmetry of the previous one as shown as following graph. Longitudinal force distribution(a) - optimum case Explained in the previous article, the vehicle weight can be expressed as two equations here  in which a is plus for acceleration and minus in braking. ...

CG effect on braking & acceleration Summary  Quiz : Which brake should keep its function for the entire braking process if you choose only one brake among 4? Why does a car tend to rotate at braking and accelation? What are the effects of CG location on braking and acceleration Effects of vertical location Effects of horizontal location Where is the best CG location of perfect car Figuring out the answer to this quiz, you will have a chance to think about the important effects of CG related to its height and horizontal location on braking and acceleration. And we will have a discussion on why a car tend to rotate at braking and acceleration. Then, I will explain what are the effects of CG location on braking and acceleration. Effects of vertical location, effects of horizontal location. Finally, I will explain what is the best CG location of perfect car. Review I picked up this picture from my previous article. As I explained, front tire braking force and vertical reaction forc...