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19 December, 18:34

Which of the following could not be vector magnitudes

5 hours

12 miles

14 meters

60 kilometers/hour

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Answers (2)
  1. 19 December, 18:41
    0
    5 hours

    Explanation:

    An hour is a unit of time which is a scalar quantity (It has no direction).

    Miles and meters are units of displacement which is a vector quantity.

    Kilometers/hour is a derived unit of velocity which is a vector quantity.
  2. 19 December, 18:59
    0
    Among the following which is mentioned, 5 hours could not be vector magnitudes.

    Answer : Option A

    Explanation:

    ''Scalar'' and ''vector'' quantities are differentiated depending upon whether the object has magnitude and direction. Scalar quantities possess magnitude only whereas vector quantities possess both.

    Time doesn't have any direction so it is not a vector quantity and so it comes under scalar quantity. Whereas ''distance'', ''displacement'', ''velocity'' has both magnitude and direction and hence they come under vector quantities. So option B, C, D are invalid in this context.
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