Map Sapling Learning Magnus has reached the finals of a strength competition. In

Question

Map Sapling Learning 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 x 103 Newtons while Magnus pulls the bus a distance of 2.13 meters, how much work does the tension force do on Magnus? The rope is perfectly horizontal during the pull. Number O Previous Give up & View Solution Check Answer O Next Ex Hint

Explanation / Answer

the tension in the rope T acts on Magnus in the opposite direction as he pulls the bus

therefore work done = F x d

F = force , d = displacement along line of action of force

W = 1.6x10^3 x (-2.13) [- sign indicating displacement is in the opposite direction of the Tension force]

= - 3408 Joules

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