Is this correct please solve if not

8. A force of 1.0 X 105 N moves a heavy box up a ramp with a 21 incline. The weight of the box is 1.69 X 103 N, and it moves up the ramp at a constant speed. What is the coefficient of kinetic friction between the box and the ramp? (a) 0.02 Tret z tootlos (b) 0.25 For=mattoxlossin 210 (cyo.48 Fin = 1 69x103 (9.6) 1000210 (d) 0.71 En 21 6920 368 140 0 = 16 9 20 uk + 100 060sy FK