A

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Q. The breaking strength of a rope is 400 N. A fireman weighing 60 kg slides down the rope. The rope will break if

  • (A) 107 dynes
  • (B) the acceleration is 7.5 m/s2
  • (C) the acceleration is 1.2 m/s2
  • (D) the acceleration is 3.1 m/s2

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