FYKOS Year 25 Series 2 Problem 5 — hair · FYKOS 25 #25.2.5
Physics · mechanics · electromagnetism
Problem
A hair with a lot of curls can be approximated by a spring (in other words it can be described by the exact same parameters – radius, inclination and material constants). How much longer is the hair if it hangs vertically in a gravitational field compared to the case that it lies horizontally on a table? Assume that the inclination is very small.