FYKOS Year 29 Series 2 Problem 1 — rat on ice · FYKOS 29 #29.2.1
Physics · mechanics
Problem
A rat is running on ice with speed v. Suddenly he decides to turn 90° so that he keeps running with the same speed in the new direction. What is the least amount of time he needs for such a turn? Suppose that rat's feet can move independently. Coefficient of friction between rat's feet and ice is f.