試題詳解

34. A vertically hanging 16 kg block is connected to a cord wrapped around the rim of a flywheel with a diameter of 0.5 m. The flywheel's rotational inertia is 1.0 kg·m². Upon releasing the block and allowing the cord to unwind, what is the acceleration of the block? (Gravitational acceleration g = 10 m/s² )
(A) 2 m/s²
(B) 3 m/s²
(C) 4 m/s²
(D) 5 m/s²
(E) 6 m/s²