10.64: For a tension T in the string, . and R a I Iα TR ma T mg = = =-Eliminating T and solving for a gives , / 1 / 2 2 mR I g R I m m g a + = + = where m is the mass of the hanging weight, I is the moment of inertia of the disk combination ( 29 9.89 Problem from m kg 10 25 . 2 2 3 ⋅ × =-I and R is the radius of the disk to which the string is attached. a) With m = 1.50 kg,
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