Question

train 110 metre long is running at 108 km per hour it crosses a bridge in 13 seconds find the length of the bridge​

Answer 1

Answer:

i'm not sure but i think this is the ans

speed=108km/h = 30m/s

time=13 sec

distance= speed*time

             =30*13=390 m

length of train=110m

length of bridge= distance-length of train

                          =390-110=280 m

i hope it helps:)

sorry if it doesn't:(

Step-by-step explanation:

Answer 2

Length of the bridge is 280metres.

Given :

Length of the train = 110 metre

Speed of train = 108 km/h

Time taken to cross the bridge = 13s

To find :

Length of the bridge

Solution :

Speed of the train in m/s = (108 × 5/18) m/s

= (6 × 5) m/s

= 30 m/s

Total distance covered by train = Speed × time

= 30 × 13

= 390 m

Hence , length of the bridge = total distance covered by train - length of the train

= 390 - 110

= 280

Therefore, length of the bridge is 280metres.

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