Multiple choice

Knot is the unit of speed for

  1. ships

  2. planes

  3. animals

  4. none of these
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A Correct answer
Explanation

A knot is a unit of speed equal to one nautical mile per hour (approximately 1.852 km/h or 1.151 mph). It's primarily used for measuring speeds of ships and boats, as well as aircraft and wind speed. The term originated from the historical method of using a rope with knots to measure ship speed.

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