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Homework Help: Questions on work and power

  1. Mar 27, 2008 #1
    If I lift an objct that weighs 1kg a distance of 1.5 meters in 2.5 seconds, what is my work and power done?

    Can you show me how you did it?

    I dont know how
     
  2. jcsd
  3. Mar 27, 2008 #2

    rock.freak667

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    Start off with the definition of Work done. How do you calculate it?
     
  4. Mar 27, 2008 #3
    w=fd

    i got 14.7 for work

    and

    5.88 for power
     
  5. Mar 27, 2008 #4
    So you do know how. ;)
     
  6. Mar 27, 2008 #5

    rock.freak667

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    F=mg=1*9.81= #

    W=Fd=#*1.5= ____ J

    P=W/t and your answers seem to be correct so.
     
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