In the figure, the coefficient of friction between the mass and the plane is 0.2. How much work is done by the force F in moving the mass up the plane a distance of 4m? (sin36.9= 0.6, cos36.9=0.8, g=9.8 m/s) A) 1.67 kJ B) 1.49 kJ C) 2.23 kJ D) 3.15 kJ E) 1.25 kJ F 50 kg 36.9