Final answer:
Without additional details like the masses of the boat and anchor and the initial velocity of the boat, it is not possible to accurately calculate the boat's velocity after the anchor is released.
Step-by-step explanation:
To determine the velocity of the boat after the anchor is released, one must consider the conservation of momentum, assuming no external forces act on the system. Since only the anchor's velocity is given, we cannot calculate the boat's velocity without additional information about the system such as the mass of the boat, the mass of the anchor, and the initial velocity of the boat. If, for instance, the boat and the anchor were initially at rest and we knew their respective masses, we could use the conservation of momentum to find the boat's velocity after the anchor is released. It's important to note that the boat's velocity will be in the opposite direction to the anchor's release, assuming a straight-line system. However, without this data, a definitive answer cannot be provided.