Figure shows a uniform ramp between two buildings that allows for motion between the buildings due to strong winds. At its left end, it is hinged to the building wall; at its right end, it has a roller that can roll along the building wall. There is no vertical force on the roller from the building, only a horizontal force with magnitude Fh. The horizontal distance between the buildings is D = 4.00 m. The rise of the ramp is h = 0.490 m. A man walks across the ramp from the left. Figure gives Fh as a function of the horizontal distance x of the man from the building at the left. The scale of the Fh axis is set by a = 20kN and b = 25kN what are the masses of?

(a) The ramp and

(b) The man?

D. x (m) (6) (a) F, (kN)