Figure 12-65a shows a uniform ramp between two buildings that allows for motion between

Chapter 12, Problem 56

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Figure 12-65a 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 12-65b 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 20 kN and b 25 kN. What are the masses of (a) the ramp and (b) the man? xha0 2x (m)4bFh (kN) Figure 12-65 56.