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Two vectors vecA and vecB are such that ...

Two vectors `vecA` and `vecB` are such that `vecA+vecB=vecA-vecB`. Then

A

`vecA+vecB=0`

B

`vecA-vecB=0`

C

`vecA=0`

D

`vecB=0`

Text Solution

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The correct Answer is:
D
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MOTION-VECTOR -Exercise - 2
  1. What are minmum number or unequal fores whose vector sum is zero ?

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  2. If |vecA-vecB|=|vecA|=|vecB|, the angle between vecA and vecB is

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  3. Two vectors vecA and vecB are such that vecA+vecB=vecA-vecB. Then

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  4. Find the vector sum of N coplanar forces, each of the magnitude F,when...

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  5. Three forces P,Q and R are acting at a point in the plane. The angle b...

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  6. Two forces, each of magnitude F have a resultant of the same magnitude...

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  7. The resultant of two forces, one double the other in magnitude is perp...

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  8. A particle is moving on a circular path with constant speed v then the...

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  9. A man moves towards 3m north then 4 m towards east and finally 5 m tow...

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  10. A particle is acted upon by the forces vecF(1)=2hati+ahatj-3hatk , vec...

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  11. A vector vec(A) of length 10 units makes an angle of 60^(@) with a vec...

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  12. The component of a vector is

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  13. The magnitude of the vector product of two vectors vecA and vecB may b...

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  14. Three vectors vecA, vecB and vecC satisfy the relation vecA. vecB=0 an...

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  15. The angle between the two vectors -2hati+3hatj+hatk and hati+2hatj-4...

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  16. A body constrained to move in y direction is subjected to a force give...

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  17. If the angle between the unit vectors hata " and " hatb is 60^(@), the...

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

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  19. What is the angle between (vecP+vecQ) and (vecPxxvecQ)

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  20. Which of the following is not true ? If vecA=3hati+4hatj and vecB=6h...

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