本题目来源于试卷: gc physics textbook chapter 4 problems，类别为 IB物理学
[问答题]
A fisherman in a boat is usi,l yd(1 a 1)5sfbze5)vl hzwfpng3bp ozoh).f8m a " 10-1 $\mathrm{~b}$ test" fishing line. This means that the line can exert a force of 45 N without breaking (1 $\mathrm{lb}=4.45 \mathrm{~N}$) . (a) How heavy a fish can the fisherman land if he pulls the fish up vertically at constant speed? (b) If he accelerates the fish upward at 2.0 $\mathrm{~m} / \mathrm{s}^{2}$ , what maximum weight fish can he land? (c) Is it possible to land a 15-lb trout on 10-1b test line? Why or why not?
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