A uniform cylinder of radius 1 m, mass 1...

A uniform cylinder of radius 1 m, mass 1 kg spins about its axis with an angular velocity 20 rad/s. At certain moment, the cylinder is placed into a corner as shown in the figure. The coefficient of friction between the horizontal wall and the cylinder is `mu` , whereas the vertical wall is frictionless. If the number of rounds made by the cylinder is 5 before it stops, then the value of `mu` is (acceleration due to gravity, `g = 10 m//s^2` )

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