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Showing results for tags 'Inertia'.
This is a topic that I've briefly mentioned in some other thread years ago in this forum. Now it's been bouncing at the back of my head lately, and thought it deserves a thread of its own. Just a context for the uninitiated; While we are all familiar with the phenomenon of inertia in everyday life, we still struggle to explain it in physics. It is usually simply viewed as "intrinsic property of matter", with no further explanation as to why or how the phenomenon occurs. It seems to me that all attempts to describe an actual mechanism for inertia revolve around Mach's Principle one way or anoth
Hi, I need some assistance understanding moments of inertia. I am doing some review for an upcoming exam, however I am slightly stumped by this question. I have already tried googling "moments of inertia" to try and understand the concept better, but I am having issues knowing when to apply which formulas. I have attached my specific question and the "answer" to the question, hopefully someone can help me understand how to get the answer. ---- Two identical slender rods of length l and mass m are linked together at 90deg, as shown in figure Q4a (image attached), to form a link in a mechani