A 0.450 kg particle slides arounda horizontal track. The track has a smooth vertical outer wallforming a circle with a radius of 1.20m. The particle is given an initial speed of 8.00 m/s. After one revolution, its speed hasdropped to 5.00 m/s because offriction with the rough floor of the track.
(a) Find the energy converted from mechanical to internaly due to friction in one revolution.
J
(b) Calculate the coefficient of kinetic friction.
(c) What is the total number of revolutions the particle makes before stopping?
rev