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Very confusing

  1. Apr 2, 2008 #1
    very confusing :(

    i have a big assingment due april 7th , i have answered all the questions but 4 are left. can anyone help me... pleaseee :D

    1. Terry uses a force of 10.0 N to push her CD player a distance of 0.50 m across a table. Calculate the amount of work she does on the CD.

    2. Tony pulls his wagon a distance of 15 m across the garden while applying a force of 160 N on the wagon’s handle. If the handle makes an angle of 400 with the horizontal, how much work did Tony do on the wagon?

    3. What is the kinetic energy of a 1000 kg car travelling at 25 m/s?

    4. A 65 kg diver is standing on a diving platform 10.0 m above the water. What is the gravitational potential energy of the diver with respect to the water’s surface?
  2. jcsd
  3. Apr 2, 2008 #2
    What's the definition of Work?
  4. Apr 2, 2008 #3
    Energy, work and power
  5. Apr 2, 2008 #4


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    Are your just typing random words out of your textbook?

    What is the mathematical definition of work? i.e. write down an equation.
  6. Apr 2, 2008 #5
    well if i knew the equations , i would be able to solve it.
    i just know it has something to do with work-energy theorm
  7. Apr 2, 2008 #6


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    Last edited: Apr 2, 2008
  8. Apr 2, 2008 #7
    thannxx :D
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