A 14.0-lb beam is supported by two 8.00-lb cylinders placed under it. A 5.00-lb magnitude force pulls the beam at its end, coplanar with its surface as depicted. As the beam moves forward, the cylinders roll without slipping relative to the floor and beam. (a) At the instant the cylinders are equidistant from each end, what is the acceleration of the beam? (b) What is the acceleration of the cylinders? (c) Determine the frictional forces at this time