Final answer:
According to Newton's Third Law of Motion, when a horse pulls a carriage, there are equal and opposite forces involved.
Step-by-step explanation:
According to Newton's Third Law of Motion, when a horse pulls a carriage, there are equal and opposite forces involved. The force exerted by the horse on the carriage is matched by an equal and opposite force exerted by the carriage on the horse. This is because every action has an equal and opposite reaction.