A Wheel (Radius = 0

Multiple Choice

A wheel (radius = 0.20 m) is mounted on a frictionless, horizontal axis. A light cord wrapped around the wheel supports a 0.50-kg object, as shown in the figure. When released from rest the object falls with a downward acceleration of 5.0 m/s². What is the rotational inertia of the wheel? ​ ​

A) 0.023 kg⋅m²
B) 0.027 kg⋅m²
C) 0.016 kg⋅m²
D) 0.019 kg⋅m²
E) 0.032 kg⋅m²