Help with Mechanics Problem Needed

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The discussion centers on a mechanics problem involving two horses pulling a barge at an angle of 30 degrees, each capable of 2 horsepower (1500W). The first calculation requires determining the tension in the cables when the horses are moving at a steady speed of 1.73 m/s. The second part involves calculating the maximum steady speed of the barge, given that the water exerts a resistive force of 120v Newtons, where v is the barge's speed. The relationship between power, force, and velocity (P = Fv) is highlighted as crucial for solving these calculations. Assistance is sought particularly for the second part of the problem.
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Two horses are pulling a barge as shown. Both hourses can each work at a maxiumum rate of 2 horsepower=1500W.

(The picture shows a barge headed in the right direction, with the horses pulling at 30 degrees relative to the displacement. so they are pulling sideways in both directions)

1) When the horses are walking at a steady speed of 1.73 m/s, Calculate the tension in the cables.

2) If the water exerts a resistive force on the barge that varies with the barges speed as 120v (Newtons) where v is the speed of the barge in the water, calculate the maximum steady speed of the barge when each horse is exerting his maximum horsepower.

Any help on this question, especially the second part, would be much appreciated!
 
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HINT: P = Fv
 
Last edited:
We need the resistance to calculate 1) if I am not mistaken.
 
qspeechc said:
We need the resistance to calculate 1) if I am not mistaken.
We don't actually...
 
Ok, :)
 
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