A fireman of mass \( 60 \mathrm{~kg} \) slides down a pole. He is pressing the pole with a force....

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A fireman of mass \( 60 \mathrm{~kg} \) slides down a pole. He is
\( \mathrm{P} \)
pressing the pole with a force of \( 600 \mathrm{~N} \). The coefficient of friction between the hands and the pole is 0.5 . With what acceleration (in \( \mathrm{m} / \mathrm{s}^{2} \) ) will the fireman slide down \( \left(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^{2}\right) \) ?


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