A Mass of 375 G Hangs from a String That

Multiple Choice

A mass of 375 g hangs from a string that is wrapped around the circumference of a pulley with a moment of inertia of 0.0125 kg∙m² and a radius of 26.0 cm. When the mass is released, the mass accelerates downward and the pulley rotates about its axis as the string unwinds. What is the acceleration of the mass?

A) 19.9 m/s²
B) 15.8 m/s²
C) 13.1 m/s²
D) 6.57 m/s²
E) 3.28 m/s²