1) A Pasco rotational motion apparatus with a step pulley diameter of (34.90 ± 0.01) mm is used to determine the experimental value for the moment of inertia of a rectangular bar A. The mass needed to overcome the friction of the axle with just the platter alone is (8.0±0.1)g.The hanging mass used to measure the acceleration of the platter is (70.4+0.1) g. With these masses the resulting velocity vs. time graph is fitted with a straight line, which yields the following fit result: V(t) (0.0197 t+0.0206) 4 Calculate the moment of inertia of the rotational motion apparatus (without uncertainty) for the platter alone (plater using equation (9.9). S e s B. The mass needed to overcome the friction of the axle for the platter with the bar is (16.5±0.1)g.The hanging mass used to measure the acceleration of the platter with the bar is (70.4 0.1)g . With these masses the resulting velocity vs. time graph is fitted to straight line, which yields the following fit result: V(t) (0.0128 t + 0.01 83) Calculate the moment of inertia of the rotational motion apparatus (without uncertainty) bafor the platter with the bar (Iot) using equation (9.9) I= mR2 -1 a

1) A Pasco rotational motion apparatus with a step pulley diameter of (34.90 ± 0.01) mm is used to determine the experimental value for the moment of inertia of a rectangular bar A. The mass needed to overcome the friction of the axle with just the platter alone is (8.0±0.1)g.The hanging mass used to measure the acceleration of the platter is (70.4+0.1) g. With these masses the resulting velocity vs. time graph is fitted with a straight line, which yields the following fit result: V(t) (0.0197 t+0.0206) 4 Calculate the moment of inertia of the rotational motion apparatus (without uncertainty) for the platter alone (plater using equation (9.9). S e s B. The mass needed to overcome the friction of the axle for the platter with the bar is (16.5±0.1)g.The hanging mass used to measure the acceleration of the platter with the bar is (70.4 0.1)g . With these masses the resulting velocity vs. time graph is fitted to straight line, which yields the following fit result: V(t) (0.0128 t + 0.01 83) Calculate the moment of inertia of the rotational motion apparatus (without uncertainty) bafor the platter with the bar (Iot) using equation (9.9) I= mR2 -1 a