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A vector is not changed if...

A vector is not changed if

A

It is rotated through an arbitrary angle

B

It is multiplied by an arbitrary scalar

C

It is cross - multiplied by a unit vector

D

It is slid parallel to itself

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • (A) : A vectors will not change when the fram of reference in which it is existing is rotated . (R) : A scalar quantity may (or) may not be independent of arientation of frame of reference :

    A
    If both A and R are trun and R is the correct explanation of A.
    B
    If both A and R are true, but R is not correct expalanation of A.
    C
    If A is true, but R is fasle .
    D
    If A is fasle , but R is true.

  • An impulse is supplied to a moving object with the force at an angle 120^(@) with the velocity vector. The angle between the impulse vector and the change in momentum vector is

    A
    `120^(@)`
    B
    `0^(@)`
    C
    `60^(@)`
    D
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    A
    `120^(@)`
    B
    `0^(@)`
    C
    `60^(@)`
    D
    `240^(@)`
    • CP SINGH-VECTORS-Excercises
    1. A vector is not changed if

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

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    3. Two vectors acting through a point are in the ratio 3 : 5. If the angl...

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    4. The magnitude of vectros vec A, vec B and vec C are 12, 5 and 13 units...

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    5. If vec(A)=vec(B)+vec(C ), and the magnitudes of vec(A),vec(B),vec(C ) ...

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    6. Two forces, while acting on particle in opposite directions,have the r...

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    7. One of the following forces is double and the other resultant is equal...

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    8. Two vectors of magnitude 4 and 6 are acting through a point. If the ma...

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    9. The resultant of vecA and vecB makes an angle alpha with vecA and beta...

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    10. Which of the sets given below may represent the magnitudes of three ve...

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    11. The following sets of three vectors act on a body, whose resultant ...

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    12. Three vectors vec(P) , vec(Q) and vec( R) are such that |vec(P)| , |ve...

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    13. Three forces 9 , 12 and 15 N acting at a point are in equilibrium . T...

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    14. If the resultant of n forces of different magnitudes acting at a point...

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    15. Let vec(C )= vec(A)+vec(B) then

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    16. Forces of 1 and 2 units act along the lines x = 0 and y = 0. The equ...

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    17. The sum of two forces at a point is 16N. if their resultant is normal...

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    18. A particle is being acted upon by four forces of 30 N due east , 20 N ...

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    19. Six vector vec(a) through vec(f) have the magnitudes and direction ind...

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    20. If N-vectors of equal magnitude are acting through a point and angle b...

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