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Plz explane polygon law with the help of triangle law |
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Answer» Consider vectors A,B,C,D and E.To find the resultant of these vectors,draw a vector ab=A,bc=B,cd=C,de=D,ef=E and af=R.Proof- join ac and apply triangle law of vector addition to ∆abcac=ab+bc = A+B.Now join ad and apply triangle law of vector addition to ∆acdad=ac+cd = A+B+C.Now join ae and apply triangle law of vector addition to ∆adeae=ad+de = A+B+C+D.Finally apply triangle law of vector addition to ∆aefaf=ae+ef = A+B+C+D+E.Therefore, R = A+B+C+D+E. Diagram is required for it but,I can\'t give u diagram but surely I can give u the solution. |
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