1. The problem statement, all variables and given/known data The 25-lb slender rod has a length of 6 ft. Using a collar of negligible mass, its end A is confined to move along the smooth circular bar of radius 32√ ft. End B rests on the floor, for which the coefficient of kinetic friction is μB = 0.24. The bar is released from rest when θ = 30∘. 2. Relevant equations lots of em 3. The attempt at a solution I wanted to do this in normal-tangential coordinates b/c it seemed easier but I'm getting the wrong answer.. here is my work . Let me know if any of my logic here is wrong. ---The bar is released from rest so the sum of the forces should equal 0 but NOT the moments. ----The sum of forces in the tangent direction also = 0 because their is no acceleration in that direction b/c the object is constrained to moving in a circle ---I'm summing the moments about point G, the center of mass for the rod, thus the the equation becomes Sum of (M_G) = (I_G)* Alpha --- Normal Force at A crosses point G so no moment there. Same goes for weight. --- thus only the frictional force and the normal force's tangent components are present in the moment equation.. Please help a guy out!! Thanks in advance.