FYKOS Year 27 Series 4 Problem 1 — Another unsharpened one · FYKOS 27 #27.4.1

Physics · mechanics

Problem

A freshly sharpened pencil 6B has a tip in the shape of a cone and the radius of the cone's base is r=1  mmr=1\;\mathrm{mm} a and its height is h=5  mmh=5\;\mathrm{mm}. How long will the line that we are able to make with it be if the distance of two graphite layers is d=3,4A˚d=3,4Å and the track of the pencil has on average n=100n=100 such layers?

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