This final paper work contains two branches of mechanics which are kinematics and dynamics. The purpose of the final paper work is to solve the given tasks from the domain of kinematics and dynamics. What is explained in the first part of the domain of kinematics is the basic theorem on solid body kinematics. After that, plenary motion, current center of shift and speed and finally, the speed plan. The task covers the solving of the stick system with the help of the speed plan (graphic and analytical method). The second part of the final paper work deals with dynamics and explains the concepts of: moment of inertia and the law of maintaining mechanical energy. With the given task, the stiff body movement or oscillation has been studied. It was necessary to determine the reactions of the supporting point A in the given moment and the moment when it reaches the maximum angular velocity as the ordinal number which will force the object to stop. In the first construction system task given on the drawing, it is necessary to calculate not only the angular velocities, but also the speed of points, using the speed plan. Decisions should be controlled with vectors. The second task required the determination of the complex body reactions in the given moment as well as in the moment of reaching the maximum angular velocity and set the number of swings before the object stops (approximately).