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Vector Word Problem Help

  1. Apr 23, 2013 #1
    1. Let F = 1050N & θ = 24°. A tow truck drags a stalled car along a road. The chain makes an angle of θ degrees with the road, and the tension in the chain is F newtons. How much work W is done by the truck in pulling the car a distance D = 1km(1000m) along a horizontal road? Express the result in joules using scientific notation and three significant figures.



    2. w = f*d



    3. I don't have a clue how to approach this problem. I need some guidance as in approaching the problem so that I can solve the problem.
     
  2. jcsd
  3. Apr 23, 2013 #2

    Simon Bridge

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    Start from the definition of work.
    (In words - possibly.)

    i.e. if the force were perpendicular to the direction of travel - how much work would it do?
     
    Last edited: Apr 23, 2013
  4. Apr 23, 2013 #3

    LCKurtz

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    And don't you mean ##w = \vec f \cdot \vec d##? (Vectors and dot product)
     
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