CBSE - XI Science - Mathematics - Conic Sections
1. The cable of a uniformly loaded suspension bridge hangs in the form of a parabola. The roadway which si horizontal & 100m long is supported by vertical wires attached to the cable , the longest wire being 30m and shortest being 6m.
Finnd the length of a supporting wire attatched to the roadway 18m from the middle?
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