Question

A train running at the speed of 90 km per hour passes a pole on the platform in 20 seconds find the length of the train in metres

Answer 1

Answer:

Step-by-step explanation:

Speed = 90km/h

Time= 20 sec

Length(d)=?

1 km = 1000 m

So, 90 km = 90*1000

1 hour = 360 seconds

So, Speed = 90*1000/3600 = 25m/s

s=d/t

d=s x t

d= 20 x 25

d= 500 m

Thus length of train = 500m