3. A firefighter with a mass of 70 kg slides down a vertical pole, accelerating at 2 m/s". The force of friction that acts on the firefighter is A. 70 N. B. 560 N. C. 140 N. D. 700 N.
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The mass of the firefighter is 70 kg, and the acceleration due to gravity (g) is 9.8 m/s². The firefighter accelerates down the pole at 2 m/s². Show more…
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