Non-Sinusoidal Oscillation: A Balloon on a String
Non-Sinusoidal Oscillation: A Balloon on a String
Picture a buoyant balloon trailing a string with some mass per unit length. As the balloon rises, more string is lifted off the floor and the weight of the balloon-string system increases. As the balloon sinks, string returns to the floor and the weight of the balloon-string system decreases. In effect, the mass of the system depends on its position.