The following problems are to be solved using the principle of virtual work.ProblemThe mas...

The following problems are to be solved using the principle of virtual work.

Problem

The mass of the bar is 10 kg, and it is 1 m in length. Neglect the masses of the two collars. The spring is unstretched when the bar is vertical (α = 0), and the spring constant is k = 100 N/m. Determine the values of a at which the bar is in equilibrium.