Question

A goods train is 800 meters long and it is running at a constant speed of 60km/per hour. if it takes 120 seconds to pass a bridge

Answer 1

I think we have to find the length of bridge...

total distance covered by train = 800m+x
x is the length of bridge

speed =60km/hr

Now it takes 120 sec to cross the bridge
120sec = 2min = 0.033 hr

Now, total distance = speed ×time = 60km/hr×0.033hr= 1.98km

Length of bridge=total distance-lenght of train= 1.98km-0.8km = 1.18km