Abstract
In this article, we study the behaviour of a looped string launched in ambient air using motorised wheels. We show that the loop, once it reaches its stationary state, is either in the pulley or the air-lifted state. The transition between these two distinct states occurs at the so-called takeoff speed. We prove that this speed differs from one string to another based on its characteristics. However, it is independent from the loop’s length and its initial launch angle. This speed indeed corresponds to the threshold where air drag starts compensating for the weight of the string.
Highlights
We study the behaviour of a looped string launched in ambient air using motorised wheels
The String Shooter is an experimental setup wherein a closed string loop is propelled through the air using two motorised wheels spinning in opposite directions
The loop was first launched up in the air when at atmospheric pressure, and as we gradually decreased the air pressure, the loop fell and started dangling down, even though it was still being propelled by the spinning wheels. This made us realise the role that air drag plays in the String Shooter’s physical behaviour and motivated us to study it in depth, especially since we could not find previous scientific literature on the subject
Summary
The String Shooter is an experimental setup wherein a closed string loop is propelled through the air using two motorised wheels spinning in opposite directions After some time, this loop forms a stable shape, which we call the String Shooter’s stationary state. The loop was first launched up in the air when at atmospheric pressure, and as we gradually decreased the air pressure, the loop fell and started dangling down, even though it was still being propelled by the spinning wheels This made us realise the role that air drag plays in the String Shooter’s physical behaviour and motivated us to study it in depth, especially since we could not find previous scientific literature on the subject
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
