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

    Aug 6, 2017, 09:23 AM
    A body is displaced form A=(2m,4m,-6m) to r vector b=(6 I cap-4 j cap + 4 k cap)under
    This is a work energy problem and I 'm not able to slove it please help? DO we have to add vector A and B to get the displacement?

    Actually this is the whole correct question :

    A body is displaced form A=(2m,4m,-6m) to r vector b=(6 i cap-4 j cap + 4 k cap)under a constant force F vector =(2 i cap +3 j cap - k cap)n find the work done
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Aug 7, 2017, 05:50 AM
    Recall that work = . You have vectors for both and , so all you need is to calculate the dot product of the two vectors. Do you know how to do that?
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