The following sets of three vectors act ...

The following sets of three vectors act on a body. Whose resultant cannot be zero ?

A

10, 10, 10

B

10, 10, 20

C

10, 20, 20

D

10, 20, 40

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The correct Answer is:

D

If `|bara|=10,|barb|=20,|barc|=40`
As `|bara|+|barb|lt|barc|,bara,barb,barc` cannot lie along the sides of a triangle

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