Question

The speed of train is 30km/h .How long will it take to cross a signal if its length is 25 m?​

Answer 1

Answer(i)  

Speed of a train = 30 km/hr = 8.33 m/s

 

Distance = 25m  

 

Time = ?

 

Time = Distance ÷ Speed = 25 ÷ 8.33 = 3.001 sec

Answer 2

Step-by-step explanation:

by using formula,

speed =distance/time

30km/h = 30 * 5/18=25/3

time= 25/25/3=3 sec