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- Force applied off center on an object 2 answers
I am having a problem while dealing with the so called torque equation τ=Iα, which I am describing with the help of an illustration. Please help me out. Consider a rod of length L and mass ‘m’ lying on the positive x axis with its edge as origin. Suppose it has the z axis as the fixed axis of rotation. A force ‘F’ is applied on the COM of the rod, and parallel to the y axis. We can easily calculate the angular acceleration of the rod ‘α’ about the fixed axis of rotation by using τ=Iα. Now if we apply this relation to a point, other than the fixed axis of rotation, say the other end, what will be the new angular acceleration? I mean how can we find out angular acceleration of an object about a point other than the axis of rotation? How can we define angular acceleration about the end farther from the origin, when it is not rotating about that end?