You push a box (m = 4 kg) starting from rest across a horizontal surface with a constant force F = 30 N. After pushing it for a distance d = 5 m, the box reaches a small ramp with an incline of = 25. You stop pushing the box as soon as it reaches the ramp. The coefficient of kinetic friction between the box and the horizontal surface is k = 0.4 but the ramp is frictionless. Determine how far up the ramp the box will go.