Question

A train 100 m in length is running at a speed of 72 km/h. what is the time taken by the train to cross a of length 525 m? ​

Answer 1

Answer:

Yep

Step-by-step explanation:

Answer: 31.25 s

Step-by-step explanation:

Length of the train = 100m

Length of the bridge  525m

Therefore, the total distance that the train should cover = 100 + 525

                                                                                                 = 625m

Speed of train = 72km/hr

Multiplying with 5/18 to convert km/hr to m/s

ie, 72 x 5/18 = 4 x 5 = 20m/s

We know that, time = distance/speed

                                 = 625/20

                                 = 31.25 seconds

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Answer 2

Answer

• Length of the train = 100m

• Length of the bridge = 525m

⇒ Therefore, the total distance that the train should cover = 100 + 525

                                                                                                      =  625m

→ Speed of train = 72km/hr

→ Multiplying 5/18 to convert km/hr to m/s

72 x 5/18 = 4 x 5 = 20m/s

We know that, time = distance/speed

                                 = 625/20

             Answer      =  31.25 seconds

Hope it helps u❤️