MCQ
The relation between the vectors A and -2A is that,
  • A
    Both have same magnitude.
  • B
    Both have same direction.
  • C
    They have opposite directions.
  • D
    None of the above.

Answer

  1. They have opposite directions.

Explanation:

Multiplying a vector A by a negative number $\lambda$ gives a vector $\lambda\text{A},$ whose directions opposite to the direction of A and it's magnitude is $-\lambda$ times |A|.

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