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A fisherman in a boat is using a "10-lb test" fishing
Chapter 19, Problem 85GP(choose chapter or problem)
Problem 85GP
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 (1 lb=4.45 N). (a) How heavy a fish can the fisherman land if he pulls the fish up vertically at constant speed? (h) If he accelerates the fish upward at 2.0 m/s2 what maximum weight fish can he land? (c) Is it possible to land a 15-lb trout on 10-lb test line? Why or why not?
Questions & Answers
QUESTION:
Problem 85GP
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 (1 lb=4.45 N). (a) How heavy a fish can the fisherman land if he pulls the fish up vertically at constant speed? (h) If he accelerates the fish upward at 2.0 m/s2 what maximum weight fish can he land? (c) Is it possible to land a 15-lb trout on 10-lb test line? Why or why not?
ANSWER:
Solution 85GP: We have to determine the heaviest fish can be pulled out of water at a constant speed and at constant acceleration. In the third part, we have to find whether it is possible to land a 15lb trout on 10 lb test line. Step 1 of 6 Concept: Newton’s second law: The net force F acting on an object of mass m produces an acceleration a in that object. Mathematically, F= ma. Tension is the internal developed in the test line, which depends upon the application and magnitude of force applied. Free body diagram of a body gives the diagrammatical representation of all the forces acting on the body in terms of magnitude and diagram, under the given situation.