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With what minimum acceleration can a fireman slide down a rope while breaking

With what minimum acceleration can a fireman slide down a rope while breaking strength of the rope is 2/3 of the weight?

Options

(a) 2/3 g
(b) g
(c) 1/3 g
(d) Zero

Correct Answer:

1/3 g

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

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