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You are underway at 5 knots and see on


You are underway at 5 knots and see on your radar a contact 10 miles directly astern of you. 12 minutes later,the contact is 8 miles directly astern of you. What is the estimated speed of the contact? ()

  • ADead in the water
  • B1 knot
  • C10 knots
  • D15 knot
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