Question

A 700 metre long train is running at 72 kilometre per hour if it crosses a tunnel in 1 minute find the length of the tunnel​

Answer 1

Answer:

your answer is 72 Meyer long tunnel

Answer 2

Step-by-step explanation:

length of train = 700m

speed = 72km/h = 72 × 5/18

= 20 m/s

here 1s = 20 m

1 minute = 60 s

to cross tunnel, train needs to travel

(length of train + length of tunnel) .

total distance covered by train in 1 minute. = 60 × 20 = 1200m

length of tunnel

= 1200 - 700 = 500m Ans