How do I calculate the resultant displacement if a man travels 1.5m towards east, then 2.0m south and finally 4.5m towards east?
Md Ariful Islam
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এমবিএ(মার্কেটিং)
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Dr. Md Rushad Rahman
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What I would do is start by graphing your vectors, adding tip to tail, which will leave you with an end point. Assuming we started at (0,0) it would be (6, -2) in your case. Then you use the distance formula, √(x1-x2)^2 + (y1-y2)^2. So then you have √(0-6)^2 + (0-(-2))^2, which, when simplified, is the √40, or 6.324555.
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