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ABCDEF is a regular hexagon, Fig. 2 (c )...

`ABCDEF` is a regular hexagon, Fig. 2 (c ) .65. What is the value of
` (vec (AB) + vec (AC) + vec (AD) + vec (AE) + vec (AF) ?`
.

A

`4 vecAO`

B

`3 vecAD`

C

`8 vecAD`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
B
Use `" "vecAB = vecAO + vecOB`
`" "vecAC = vecAO + vecOC`
`" "vecAD = vecAO + vecOD`
`" "vecAE = vecAO + vecOE`
`" "vecAF = vecAO + vecOF`
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GRB PUBLICATION-VECTORS-OBJECTIVE QUESTIONS
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  2. An expression which cannot be defined meaningfully among vectors is :

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  8. Assertion: The minimum number of non-coplanar Vectors whose sum can be...

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  9. In Fig. 3.52, D is the mid-point of vecBC Which of the following re...

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  12. vecA, vecB and vecC are vectors such that vecC= vecA + vecB and vecC...

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  13. A person walks along the path shown in Fig. 3.53. The path from B...

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  14. ABCD is parallelogram vecA, vecB, vecC and vecD are the position vec...

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  15. A lion is at some instant a position A(2m, 6m ,-1m) and a goat is...

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  16. A vector vecA points vertically upward and vecB points towards north. ...

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  17. A parallelogram is fromed withveca and vecb as the sides let vecd...

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  18. vecA and vecB and vectors expressed as vecA = 2hati + hatj and vecB = ...

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  19. The vector area of triangle position vectors of whose vertices are vec...

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  20. Area of the parallelogram formed by vectors vecA = hati + 2hatj+ 4 ...

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