The system of Prob. 6/120 is repeated here. If the 1.2-kg uniform slender bar is released from rest in the position ? = 0 where the spring is unstretched determine and plot its angular velocity as a function of ? over the range 0 = ? = ?max where ?max is the value of at which the bar momentarily comes to rest. The value of the spring constant k is 100 N/m, and friction can be neglected. State the maximum angular speed and the value of ? at which it occurs question here...