Analysis: Rope around a bollard

This analysis produces the most delightful equation.

We’ll state it without proof, but if you know calculus, look it up and revel in its elegance.

You’ll be using it for your design task.

Data from the experiment are given in the Downloads section below.

Talking points

• What do you think of the variation in the estimate of coefficient of friction between the experiments with two angles of wrap?

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