The torsional spring has a stiffness of 24 N-m/rad and is undeflected when the 6.6-kg uniform slender bar is in the upright position. If the bar is released from rest in the horizontal position shown,...

Extracted text: The torsional spring has a stiffness of 24 N-m/rad and is undeflected when the 6.6-kg uniform slender bar is in the upright position. If the bar is released from rest in the horizontal position shown, determine its angular velocity w as it passes the vertical position. Friction is negligible. K 0.68 m Answer: W = i rad/s