A 22.5 kg package is projected up a 20 degrees incline with an initial velocity of 15.2 m/s. Knowing that the coefficient of kinetic friction between the package and the incline is 0.15, determine a) the maximum distance that the package will move up the incline b) the work done by friction and c) the velocity of the package as it
returns the original position. (Use conservation of energy method)