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Answer:
c. Provoca a parada do barco. (Provoca que el bote no se mueva)
Explanation:
According to Newton's theory the fan flows air to the right and receives equal force of air to the left so here It applies Newton's first law: Inertia.
In the sail of the boat there is a force to the right mad by the air coming from the fan. The fan (attached to the boat), receives equal force to the left. The resultant is null, so the fan does not change the movement of the boat.
