question about vector

Asked by shivam maurya | 2nd Sep, 2010, 09:48: AM

Expert Answer:

If we add any three vectors and if they form a triangle i.e. closed polygon then their resultant is zero.
Hence using triangle inequality,
we find,
(a) 10, 20, 40, can't give us a resultant of ZERO, since 10 + 20 = 30 < 40
(b) 10, 10, 20, can't give us a resultant of ZERO, since 10 + 10 = 20 = 20
 
while (c) and (d) always follow the triangle inequality, hence can give a resultant of ZERO.
Regards,
Team,
TopperLearning.

Answered by  | 4th Sep, 2010, 12:29: AM

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