Question

a 225 metre long goods train is running at a a speed of 40.5 km per hour how much time will it take to cross or trees.

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Answer 1

Answer:

20 seconds

Step-by-step explanation:

Distance = 225m

Speed = 40.5 km/h

Convert the distance to km:

225m = 225 ÷ 1000km = 0.225km

Find the time needed:

Time = Distance ÷ Speed

Time = 0.225 ÷ 40.5 = 1/180 hour

Convert the time to seconds:

1/180 hour = 1/180 x 60 mins = 1/3 min

1/3 min = 1/3 x 60 seconds = 20 seconds

Answer: 20 seconds