Fishing line with a hardness of 0.5 (N / m) when lifting fish weighing 200 gr. lengthens. How much mm?

To calculate the elongation of the fishing line used, we use the equality: F = Fel .; m * g = k * Δx and Δx = m * g / k.

Values of variables and constants: m – mass of fish raised (m = 200 g = 0.2 kg); g – acceleration due to gravity (g ≈ 10 m / s2); k is the rigidity of the line used (k = 0.5 kN / m = 500 N / m).

Let’s calculate: Δx = m * g / k = 0.2 * 10/500 = 0.004 m or 4 mm.

Answer: The fishing line used when lifting the fish should have lengthened by 4 mm.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.