(Solved):   2. The uniform 7 m steel shaft has a mass of 200 kg and is sup- ported by a ball and socke ...

 

2. The uniform 7 m steel shaft has a mass of 200 kg and is sup- ported by a ball and socket support at A in the horizontal floor. The ball end B rests in the corner against the two smooth verti- cal walls as shown. The weight of the shaft acts at its mid-point. The point B is located at 3m from the origin on the vertical (a) Draw the free-body diagram of the shaft showing all the external forces acting on it. (b) Determine all the reactions at the support at A and the forces exerted by the walls on the shaft at B.