The bar is supported by the spring and smooth collar that allows the spring to be always perpendicular to the bar for any angle If the unstretched length of the spring is l0, determine the force P needed to hold the bar in the equilibrium position Neglect the weight of the bar P ...

The bar is supported by the spring and smooth collar that allows the spring to be always

Question:

The bar is supported by the spring and smooth collar that allows the spring to be always perpendicular to the bar for any angle θ. If the unstretched length of the spring is l0, determine the force P needed to hold the bar in the equilibrium position θ. Neglect the weight of the bar.