Question

Find the time taken by a train 180 m long, running at 72 km Per hour, in crossing an electric pole


Five the correct answer ​

Answer 1

Step-by-step explanation:

distance = 180( the distance of pole will be 0 )

speed = 72km/h = 72× 5/18= 20m/sec

time= 180/20= 9sec

Answer 2

Answer:

the distance the train needs to travel to cross the pole = length of the train

time = distance/speed

speed = 72km/hr = 72 x 1000/3600 = 20m/s

time = 180/20

time = 9s