Oblique projectile motion and free-fall motion contrast teaching instrument

Abstract

The present invention relates to an oblique projectile motion and free-fall motion contrast teaching instrument. The instrument comprises a first board, a wire, an electromagnet, a battery pack, a switch, a small ball, a stainless steel pipe, a bare conductor and a transparent adhesive tape. The first board is horizontally arranged and is vertically connected with a second board, a third board and a fourth board through nails; the stainless steel pipe is arranged on the second board, the third board and the fourth board; the small ball is arranged at the entrance in the stainless steel pipe; the electromagnet, the battery pack, the switch and the stainless steel pipe are connected through the wire in order; the bare conductor is pasted at two sides of the stainless steel pipe through the transparent adhesive tape; and a coin is absorbed at the bottom portion of the electromagnet, and the tangent line of the stainless steel pipe passes through the center of the coin. According to the oblique projectile motion and free-fall motion contrast teaching instrument, all the devices are stored in a toolset through pulling put nails when the oblique projectile motion and free-fall motion contrast teaching instrument is not used, and the oblique projectile motion and free-fall motion contrast teaching instrument is ingenious in design, low in manufacturing cost and convenient to carry, etc.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to View More

AI Technical Summary

Benefits of technology

This new type of training aid helps students compare how they throw or move with different movements that may be difficult due to their physical structure. Only when used will have them taken away from it but still keep everything together inside this box.

Problems solved by technology

This technical problem addressed by this patented technology relates how people who want guns while playing around with their own hands may accidentally hit them without being able to see what they were doing beforehand during shooting sessions.

Images