A student has been moving house all day and has one last 50 kg box to push across a room. The student is quite exhausted and so 3)), so that after pushing the box 2.5 m horizontally the force they apply decreases with distance as F(x) = Fo (1-(2.5 metres) (in the x direction) the student no longer applies any force. The initial force applied is Fo=120 N. A. What is the work done by the student? B. If the coefficient of friction between the box and the floor is = 0.05 and the box (initially at rest) travels a total distance of 3m (from the start of the push) before coming to rest again, what is the mass of the box? C. If instead the student had not gotten tired, and so applied a steady force of Fo over the 2.5 m (then stopped pushing) how far would the box have moved? ORDI