A 3.0 kg block rests on a 30 degree slope and is attached by a string of neglible mass to a sold drum of mass 0.80 kg and radius 10.0 cm, sliding down at an acceleration of 0.85 m/s^2.
a) Find the coefficient of friction between block and slope.
b) Find the angular accleration of the drum.
c) What is the total energy of the drum and block after sliding down the slope of 6.0 m? Use Newtons Law of work or Wor-Energy to approach.