Magnus has reached the finals of a strength competition. In the first round, he

Question

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 48 inch waist. If a force gauge placed halfway down the rope reads out a constant 662.0 lbs while Magnus pulls the bus a distance of 91.0 inches, how much work does the tension force do on Magnus? The rope is perfectly horizontal during the pull. Express your answer in both foot-pounds (ft-lb) and Newton-meters (N

Explanation / Answer

w=f*s=2T*s=662*2*91=1.20 *10^5ft-lb

w=662*2/0.45*(91*2.5/100)=6.68*10^3N-m

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