真空炮 Vacuum bazooka

 https://archive.iypt.org/problems/

30th IYPT (2017)

17. Vacuum bazooka

A ‘vacuum bazooka’ can be built with a simple plastic pipe, a light projectile, and a vacuum cleaner. Build such a device and maximise the muzzle velocity.

17.真空火箭筒

可以用一個簡單的塑料管，一個輕彈丸和一個真空吸塵器來建造一個“真空火箭筒”。建造這樣的裝置，並使槍口速度最大化。