(1) The manufacturer of the Roto-Dyne wheel reports that the mass of the wheel's rotating components is 1.41+- 0.05 kg. Assuming the wheel is a uniform disk, calculate an estimate of the wheel's moment of inertia using the formula I = (1/2)mr^2.
(2) Your are given a smaller wheel (R0 = 5.0cm) that has the same moment of inertia as the roto-Dyne. Suppose a 25-g mass hangs from a string wrapped around the wheel, and the mass is allowed to fall. Calculate the angular acceleration of the wheel using mg(R0) - m(?0)(R0)^2 = (I0)(?0) + ?f under the assumption that there ks no frictional torque, If the wheel statts at rest, how much will the wheel turn in 1.5s? what will be the wheel's angular velocity then?
(3) After resing the Experimental Procedure, identify the specific feature ona s specific graph that you will use to measure the angular acceleration ?0 of the wheel in the laboratory.