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What is the SI unit of speed?

Question: What is the SI unit of speed?
  • A. Kilometers per hour (km/h)
  • B. Miles per hour (mph)
  • C. Centimeters per second (cm/s)
  • D. None of these ✓
Correct Answer: D. None of these
Explanation: Why? The SI unit of speed is meters per second (m/s). km/h, mph, and cm/s are non-SI units used in daily life.

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