Application Of Dot/Cross Product ?

Discussion in 'General Discussions' started by Tally, May 28, 2010.

  1. Tally

    Tally Level III

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    Ok, so I really need some help with this one.

    Find the work done by a 30N force acting in the direction of the vector (-2,1,5), which moves an object from A(2,1,5) to B(3,-1,2). The distance in meters.

    I get pretty close, but can never quite get the right answer. Any help is appreciated, (+ rep) for correct complete solution.

    If there is no reply after today (May 28 Neofriends time) then, don't worry about it, it's gonna be too late so don't reply.