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20 September, 00:46

9. A sailor pulls a boat along a dock using a rope at an angle of 60.0° with the

horizontal. How much work does the sailor do if he exerts a force of 255 N

on the rope and pulls the boat 3.00 m? A girl pulls a wagon along a level path

for a distance of 44 m. The handle of the wagon makes an angle of 22°

above horizontal. If she pulls on the handle with a force of 87 N, how much

work is done?

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Answers (1)
  1. 20 September, 01:12
    0
    Answer: (1) 3.83x10^3 J

    Explanation:

    (1) Fx = (255N) cos60°

    dx=30.0m

    w=Fx dx = (255) (cos60°) (30.0m)
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