(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

9. A fisherman yanks a fish out of the water with an acceleration of 4.5 m/s^2 using very light fishing line that has a "test" value of 22N. The fisherman unfortunately loses the fish as the line snaps. What can you say about the mass of the fish?

A. m > 1.5 kg

15. A 75 kg theif wants to escape from a third story jail window. Unfortunately, makeshift rope made of sheets tied together can support a mass of only 58 kg. How might the theif use this "rope" to escape? Give quantitative answer.

A. a (downward) >_ 2.2 m/s^2

2. Relevant equations

9. F = ma

15. F = mg

3. The attempt at a solution

9. F = ma → m = F / a = 22 / 4.5 = 4.9 kg

This is what I thought. However, the answer is 1.5 kg. I don't understand what I did wrong.

15. I don't think the thief can get out of the jail. Howevery, there is the "ununderstandable" answer.

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# Homework Help: Two questions about Newton's law

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