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Analysis of the inertial propulsion concept

In this paper, an inertial device of the simplest design is proposed, which allows us to visually analyze the principle of its operation. The device is a radio-controlled car placed on the bottom of a long light cardboard box. The box is on the table. Using the remote control, the car accelerates and collides with one of the walls. On impact, the box moves across the table. Next, the car is taken to the opposite wall by the remote control without a collision. Then the process is repeated, as a result of which the device jerks along the table in one direction (in the example - to the right). The advantage of this method of control is that it is contactless, the disadvantage is that it is manual. In the framework of classical mechanics, the average speed of the box movement on the table is calculated. It depends on the ratio of the mass of the car and the box, the proportion of weight that falls on the driving wheels, the coefficient of friction between the wheels and the bottom of the box, the coefficient of friction between the box and the table, the difference in the length of the box and the car. It is shown that the average speed with a decrease in the friction force on the side of the support should first increase, and with a further decrease in friction - decrease. A condition is found under which the dependence of the average velocity on the friction force has a maximum.