3-3-2-3 (removed) Perfectly Inelastic Collisions

If you are sitting in a sailing boat, and there is not the slightest wind, can you get the boat moving by blowing air (with your breath) at the sail? Watch the video below to check your prediction.

Surprisingly, the outcome depends on whether the collision is elastic or not (besides the shape of the sail). Read xmdemo.wordpress.com/028 for the explanation.

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