Magnus has reached the finals of a strength competition. In the first round, he has to pull a city bus as far as he can. One end of a rope is attached to the bus, while the other is tied around Magnus\'s waist. If a force gauge placed halfway down the rope reads out a constant 1.610 × 103 Newtons while Magnus pulls the bus a distance of 0.711 meters, how much work does the tension force do on Magnus? The rope is perfectly horizontal during the pull.