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Practice Problems - Vectors and Trigonometry
1. Two horses on opposite sides of a narrow canal are pulling a barge along the stream. Each horse pulls with
a force of 720 N. The ropes from the horses meet a a common point on the front of the barge. What is the
resultant force exerted by the two horses if the angle between the ropes is:
(a) 30°
(b) 45°
(c) 60°

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