1.At a railroad crossing, an overpass must be built centered over the tracks at a height of 24ft and be 200ft long. the existing highway has a design speed of 50mi/hr. what length of the existing level highway must be reconstructed to provide an appropriate vertical alignment?
2.A child accidentally runs into the street in front of an approaching vehicle. The vehicle is traveling at 45 mi/h. Assuming the road is level, at what distance must the driver first see the child to stop just in time?
A)194.5 ft
B)359.5 ft
C)382.8 ft
D)165.0 ft