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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
    `240^(@)`

  • An impules 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
    `240^(@)`

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