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Keels on boats are designed to offset the push of the wind on the sails by transferring the lateral force into a forward motion. The boat can't go sideways because of the keel, so it goes forward. ...
Answer
Keels on boats are designed to offset the push of the wind on the sails by transferring the lateral force into a forward motion. The boat can't go sideways because of the keel, so it goes forward. ...