An oil tanker drops anchor and the anchor imbeds itself sufficiently to keep the tanker in a stable position. How does the tanker pull up the anchor if the movement of the tanker itself wasn’t enough force to pull it up?
In: 2
An anchor can keep a ship in place because it digs into the seabed and holds against being pulled *sideways*. When the ship wants to leave, it reels in the anchor chain until it’s above the anchor, and then pulls the anchor *upward.*
As long as the winch (or crew) is strong enough to lift the anchor, and it hasn’t gotten wedged into a crack in bedrock, it’ll come up.
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