1. The problem statement, all variables and given/known data A fisherman in a boat is using a "10- test" fishing line. This means that the line can exert a force of 45 without breaking (1lb = 4.45N). If he accelerates the fish upward at 1.8m/s/s , what maximum weight fish can he land, in newtons? 2. Relevant equations F=ma 3. The attempt at a solution Failed Answers : 25, 6 FBD demostrates a line from a fishes mouth. Gravity points down, Force of pull goes up, acceleration is upwards at 1.8m/s/s. I've tried setting the sum of all the forces in the y direction to 45N and then solving for m. That only gave me 25kg, dunno what I was thinking there. Then I tried using F=ma countless times to no avail.