A Uniform Metre Stick Is Pivoted to Rotate About a Horizontal

Multiple Choice

A uniform metre stick is pivoted to rotate about a horizontal axis through the 25-cm mark on the stick. The stick is released from rest in a horizontal position. The moment of inertia of a uniform rod about an axis perpendicular to the rod and through the centre of mass of the rod is given by (1/12) ML2. Determine the magnitude of the initial angular acceleration of the stick.

A) 17 rad/s2
B) 13 rad/s2
C) 15 rad/s2
D) 19 rad/s2
E) 23 rad/s2