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    Keabetswe's Avatar
    Keabetswe Posts: 1, Reputation: 1
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    #1

    Feb 19, 2013, 01:26 PM
    Vectors
    A hunter walks at a constant speed of 6km/h on a bearing of 45 degrees and then a bearing of 180 degrees for 60min at the same. Speed. What is the final displacement?
    JudyKayTee's Avatar
    JudyKayTee Posts: 46,503, Reputation: 4600
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    #2

    Feb 19, 2013, 01:29 PM
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    Tuttyd's Avatar
    Tuttyd Posts: 53, Reputation: 4
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    #3

    Feb 20, 2013, 12:07 AM
    Hi keabetswe,

    I think you may have left something out of your question.

    To find the displacement you are actually looking at the third side of a triangle. In other words, the distance whence the hunter started. A bearing of 45 degs. Considered in relation to a bearing of 180 degs, would result in an angle of 45 degs when he changes direction.

    We know that he walks for 60 minutes. At 6 klms per hour, but how long would he be walking for a 6 klms. Per hour in the first instance?


    Tut
    Tuttyd's Avatar
    Tuttyd Posts: 53, Reputation: 4
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    #4

    Feb 20, 2013, 12:16 AM
    Sorry double post

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