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Hi, I cannot solve this problem, I tried using cosine to solve it, but I am not sure what I am doing incorrectly. How much

Hi,

I cannot solve this problem, I tried using cosine to solve it, but I am not sure what I am doing incorrectly.

How much work (in ]) is done by the boy pulling his sister 36 m in a wagon as shown in the figure below? 30 d O O Assume no friction acts on the wagon. (Assumed = 36 m and F = 54 N. Enter a number.) W = 299.8648 X J

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