SOLUTION: An engineer designs a parabolic arch to support a bridge with a two-lane road underneath the arch. if the topmost point of the arch is 10 meters above the road and the base is 30 m

Question 1025784: An engineer designs a parabolic arch to support a bridge with a two-lane road underneath the arch. if the topmost point of the arch is 10 meters above the road and the base is 30 meters wide, can an 8-meter high container truck pass through the arch if it is 3 meters wide? support your answer.
Answer by ikleyn(52790) (Show Source): You can put this solution on YOUR website!
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An engineer designs a parabolic arch to support a bridge with a two-lane road underneath the arch. if the topmost point of the arch is 10 meters above the road and the base is 30 meters wide, can an 8-meter high container truck pass through the arch if it is 3 meters wide? support your answer.
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The condition is incomplete.

1. According to the condition, the plane of the arch is perpendicular to the road lanes, correct? Usually it is not so.

   Why do not say it directly and explicitly ?


2. But it is still not a fatal deficiency.
   The fatal is that the distance between two lanes is not given.


Who invent such problems without thinking?

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