平抛运动演示装置

Demonstrating device of horizontal projectile motion

利用日常材料设计制作了平抛运动演示装置,该装置借助红色液体和工字钉能直观地显示液体的运动轨迹,再通过测量、计算即可证明平抛运动在竖直方向上为自由落体运动.

The demonstrating device of horizontal projectile motion is improved using ordinary materials.The motion track of red liquid can be displayed directly using nail.By measuring and calculating the displayed curve,it is proved that the vertical component of horizontal projectile motion in the vertical direction is just the motion of free falling body.