A friend and I have been having an ongoing debate for years. We were at a pub on a wharf, watching shipping container ships and cruise ships come into dock, and he posed the question. With no wind, no waves, perfect conditions, could he move the ship at all?
In: Planetary Science
Without wind, yes. You only have to overcome inertia and viscous drag which can be small if you propose acceleration/velocity to be really small.
With wind in picture, hell no if you have to fight against it.
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