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Floating Ping Pong Ball Experiment Help?
Firstly, i set up a blower (i.e. reversed vaccum cleaner) and place a ping pong ball in the airflow.
Bernoulli's principle and some common sense explains this but i would like some help in working out the equations for when i tilt the blower. The ping pong ball stays in the airflow until 50 degrees. Please can you help
I'll add more information if you need it. An example of the investigation can be found here - http://scienceathome.cienciaviva.pt/bolaping_eng.h...
1 Answer
- 2 decades agoFavorite Answer
Sure. When you tip the air stream, the ball begins to exert a normal force on the dynamic pressure wall by Fn = mgcos(angle). When the normal force exceeds the dynamic pressure, the ball falls.