Hello everyone! New member here, as an ME major I always seem to come across very valuable information here, so I figured I would see if possibly someone here could help me. The problem I am dealing with involves modeling a car through certain motions such as hitting a speed bump, and part of this is finding the moment of inertia. The vehicle weight distribution is as follows; Total Weight = 2063.85 kg Weight Distributions; Front = 57.9% = 1194.97 kg Rear = 42.1% = 868.88 kg I'll try and ask this as clear as possible, please bear with me. I am confused when it comes to evaluating this. Assume that I am correct in creating a simple model by modeling it as a rod (1/12)(m)(l^2). I am not sure if I should use the center of the overall length, combined with the parallel axis theorem, or if I should be looking more into the radius of gyration. Also, when using these, should I determine first the center of gravity for the weight distribution (making l1 > l2), and then solve with those values? Any and all input is very much appreciated, I feel as though I am very close but I am definitely missing some key differences between the methods. I have included a simple diagram to aid in visualizing my problem statement.