A 0.347 kg particle slides around a horizontal track. The track has a smooth, vertical outer wall forming a circle with a radius of 1.59 m. The particle is given an initial speed of 7.37 m/s. After one revolution, its speed has dropped to 6.28 m/s because of friction with the rough floor of the track
What is the coefficient of kinetic friction?
What is the total number of revolutions the particle makes before stopping?