Asked by raph
                a particle is subjected to two displacement as follows: 30m to the northeast and 40m to northwest. what must be third displacement if the particle is to end up at the starting point
            
            
        Answers
                    Answered by
            bobpursley
            
    notice the right triangle in the vector diagram.  3,4,5 triangle...so 50m  is the displacement magnitude
Now for the angle.
sketch it.
I see at the bottom angle, the angle
arccos 30/50-PI/4, E of S. or 8.1 deg E of S
check that.
    
Now for the angle.
sketch it.
I see at the bottom angle, the angle
arccos 30/50-PI/4, E of S. or 8.1 deg E of S
check that.
                    Answered by
            Andrew
            
    a particle is subjected to two displacement as follows: 30m to the northeast and 40m to northwest. what must be third displacement if the particle is to end up at the starting point
    
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