Hey guys more help need on my behalf....the topic im having trouble with now is moment of inertia. I reallyd ont understand how it is calculated and when i look at my notes, book, and tutorials online it looks even more confusing. Can soemone give me a dumb mans walk through of moment of inertia. I'm currently working on a problem and im stuck as you might have guessed. 1) A uniform bar has two small balls glued to its ends. The bar is 2.00 m long and with mass 4.00 kg, while the balls each have mass 0.500 kg and can be treated as point masses. part a asks me to find the moment of inertia about an axis perpendicular to the bar thorugh its center. It made sense to me to use (1/12)ML^2 and just add the individual balls moments of inertia of 2(0.5)*1^2 and i got it right :tongue: part b now asks: Find the moment of inertia of this combination about an axis perpendicular to the bar through one of the balls. Now since its going through one of the balls i decided to try to use: (1/12)ML^2+(0.5)*1^2 and add M(1^2) according to the parallel axis theorem. Obviously this came out wrong so what did i do wrong? was it the application of the theorem?