Derive a symbolic equation for the experimental moment of inertia in terms of angular acceleration, when there is no friction. there actually was friction in the experiment. explain, in words, how you will eliminate the effects of friction to find the moment of inertia. 3. in the first case, the steel disk and the torque pulley were rotating. you will need to use the mass and radius to approximate the moment of inertia for the pulley. 4. pulley: i = for the disk and pulley, use the measured angular acceleration to find the experimental moment of inertia: しexperimental steel disk and pulley) subtract the moment of inertia of the pulley from the experimental moment of inertia of the disk and pulley to get the moment of inertia for just the steel disk: lesperimental (steel disk and pulley)-ipulley lexperimental (steel disk) 78