# physics

In mid-nineteenth century England horses were often used to pull barges along canals. The horse, naturally, trudged along a path parallel to the canal and so the rope to the barge was at an angle to the motion of the barge.

If such a horse was pulling with a force of 175 N at a speed of 12.80 Km/hr and the angle of the rope with respect to the canal direction was 25.0 degrees how much work (in KJ) does the horse do in 9.1 minutes?

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