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27 June, 08:39

A. 55 mi North

B. 90 km/h north

C. 90 km

D. 55mph

Which of the following is an expression of speed

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Answers (2)
  1. 27 June, 08:53
    0
    Answer: The correct answer is D. 55mph

    Explanation: The speed is a scalar quantity. A scalar doesn't specify a direction whereas B. Specify direction the other units are not for velocity or speed.
  2. 27 June, 09:09
    0
    A. Displacement

    B. Velocity

    C. Distance or length

    D. Speed
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