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    Bob Seal's Avatar
    Bob Seal Posts: 1, Reputation: 1
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    #1

    May 18, 2009, 08:31 AM
    Calculating work done
    How do you calculate work from a word problem when you are only given mass, distance traveled and time it took for this distance to be traveled?
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    May 18, 2009, 08:57 AM

    You have to remember that



    Force is also weight, given by, F=ma or W=mg, both are correct and will give you the same answer. (a = g = 10m/s^-2 {or 9.81 if you need more significant figures})

    You're also given time here, which is not necessary to find the work. With that time, you can however, find the power, given by

    Power = Work Done / Time

    Hope it helped! :)
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
    Uber Member
     
    #3

    May 18, 2009, 08:58 AM

    You have to remember that



    Force is also weight, given by, F=ma or W=mg, both are correct and will give you the same answer. (a = g = 10m/s^-2 {or 9.81 if you need more significant figures})

    You're also given time here, which is not necessary to find the work. With that time, you can however, find the power, given by

    Power = Work Done / Time

    Hope it helped! :)

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