A fisherman in a boat is using a 10-lb test fishing line

Question

Solve the all parts of following problem:

Problem: A fisherman in a boat is using a "10-lb test" fishing line. This means that the line can exert a force of 45 N without breaking (1lb = 4.45N).

Part I: If he accelerates the fish upward at 2.4m/s² , what maximum weight fish can he land?

Part II: Is it possible to land a 15-lb trout on 10-lb test line? Why or why not (few sentences).

I would really appreciate some help.