| 摘要 |
The device comprises a ball and a panel that is made in the form of a periodic corrugation. The amplitude of the corrugation at least 10 times smaller than the period of corrugation, and the ball has a diameter which is at least 10 times smaller than the period of corrugation. Corrugations of the panel can be made sinusoidal, trapezoidal, triangular, or have other more complex forms. The device can be provided with a means for throwing the ball at different angles to the plane of the panel and at different initial velocities. The technical result obtained when using the claimed invention is a device that has broad potential as a visual aid in learning the peculiarities of motion of bodies under the action of external forces.
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