#LetsPrepareATC 🏆 Prepare AAI - ATC Exam (2023) with ATC Gurus Mr. Paras Soni & Dr. Abhijit Sen
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Practice Question
A 60 kg man stands in contact against the inner wall of a hollow cylindrical drum of redius 4m rotating about its vertical axis with 180 rev./min. The coefficient of friction between the wall and his clothing is 0.20.

Find the minimum rotational speed of the cylinder to enable the man to remain stuck to the wall (without falling) when the floor is suddenly removed? Assume g = 10 m/s2

Select one correct option:

\(\sqrt{22.2}rad/s\) Correct 💪 In-correct 🧐
\(\sqrt{12.5}rad/s\) Correct 💪 In-correct 🧐
\(\sqrt{18.5}rad/s\) Correct 💪 In-correct 🧐
\(\sqrt{28.5}rad/s\) Correct 💪 In-correct 🧐
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