This is the question down there.

Question

A suspension bridge with weight uniformly distributed along its length has twin towers that extend 55 meters above the road surface and are 1200 meters apart. The cables are parabolic in shape and are suspended from the tops of the towers. The cables touch the road surface at the center of the bridge. Find the height of the cables at a point 300 meters from the center. (Assume that the road is level.)

Answer 1

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Answer 2

f(x) = ax²

f(600) = a(600)²

55 = a(360000)

11/72000 = a

 

f(300) = (11/72000)(300)²

f(300) = (11/72000)(90000)

f(300) = 13.75