A child is pulling a wagon down the sidewalk. For 9.5 m the wagon stays on the sidewalk and the child pulls with a horizontal force of 23 N. Then one wheel of the wagon goes off on the grass so the child has to pull with a force of 40 N at an angle of 10 degrees to the side for the next 4.5 m. Finally the wagon gets back on the sidewalk so the child makes the rest of the trip, 15.0 m, with a force of 25 N. How much total work did the child do on the wagon?
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