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

[A].	the slides with an acceleration of 15 m/s2	[B].	the acceleration is 3.1 m/s2
[C].	the acceleration is 1.2 m/s2	[D].	the acceleration is 7.5 m/s2

Answer: Option C