Question

a train travelling at a speed of 54 km/h crosses a lamp post in 20S what is the length of the train?

Answer 1

s=vt
=15×20
=300...........

Answer 2

Answer:

Length of the train = 300 m

Step-by-step explanation:

Given,

Speed of the train = 54 km/h = 54*1000/3600 m/s=  15 m/s

Time Taken to Cross the lamp post = 20 s

Use Formula,

Speed = Distance/ Time

Distance= Speed * Time

Distance = 15 * 20

               = 300 m

The Length of the train is equal to 300 m