Each of the uniform bars OA and OB has a mass of 2 kg and is freely hinged at O to the v...

Each of the uniform bars OA and OB has a mass of 2 kg and is freely hinged at O to the vertical shaft, which is given an upward acceleration a = g /2. The links which connect the light collar C to the bars have negligible mass, and the collar slides freely on the shaft. The spring has a stiffness k = 130 N /m and is uncompressed for the position equivalent to Θ = 0. Calculate the angle Θ assumed by the bars under conditions of steady acceleration.