Oscillation of Half-Full Water Bottle - Explained

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The discussion focuses on the oscillation behavior of a half-full water bottle when subjected to a constant force. It notes that as the amount of water in the bottle increases, the frequency of oscillations also increases, but only up to a certain limit. This phenomenon can be explained by the principles of fluid dynamics and the inertia of the water, which affects the bottle's motion. The relationship between water volume and oscillation frequency is a key point of interest. Understanding this behavior can provide insights into the dynamics of fluid-filled containers under acceleration.
NZsam03
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Hi Guys,

In physics we are investigating the movement of a half-full water bottle accelerated by a constant force. The bottle moves in one direction, before slowing and then oscillating back and forth, similar to what was described in this thread.

https://www.physicsforums.com/showthread.php?t=519651

I have noticed that as you increase the amount of water, the oscillations increase, up to a point.

How is this whole phenomena explained?

Cheers

Sam
 
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The frequency of the oscillations increases as you add water?
 

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