Heavy and light drop
Does mass change the landing time?
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Which lands first?
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How it works & assumptions
Vacuum: y=gt²/2. Quadratic drag: y=(vₜ²/g) ln cosh(gt/vₜ), vₜ=√(2mg/(ρCᵈA)).
Same 2 cm radius spheres; light mass 0.01 kg, heavy mass multiplied by the chosen ratio. Constant ρ=1.225 kg/m³ and Cd=0.47. Idealized, not a drop test prediction.
References: Shape Effects on Drag · Mechanics: 1D Motion, Quadratic Drag
This is an ideal mathematical model, not a measurement or a forecast.