Final answer:
To find the components of reaction at bearing A for a rod subjected to a 980 N force and supported by smooth journal bearings, we use static equilibrium principles, summing forces and moments, and present the results in scalar notation as Ax and Ay.
Step-by-step explanation:
To determine the components of reaction at the bearing A when a bent rod is subjected to a force of 980 N and supported by smooth journal bearings, we must apply the principles of static equilibrium in mechanics. According to these principles, the sum of all forces and moments acting on the rod must be zero for the system to be in equilibrium. For bearing A, we would consider both the vertical and horizontal reaction components since the bearings only exert force reactions. The problem would typically involve summing forces in the horizontal and vertical directions, and summing moments about a convenient axis to solve for the unknown reaction components at A. We use scalar notation to express these components as Ax for the horizontal component and Ay for the vertical component. It is important to construct a free-body diagram and use equations derived from Newton's laws of motion to solve for these components.