Question

A train is running at 36km/h.It crosses a pole in 25 sec. Find its length

Answer 1

s= 36 km/ h
s = 36*5/18=10m/s

t=25s

speed =distance/time
10= d /25
d=250 m

Answer 2

Answer:

$Distance=250m$

Step-by-step explanation:

Speed of the train is given by: $36\frac{km}{hr}$

Converting it into $\frac{m}{sec}$, multiply by $\frac{5}{18}$

Therefore, speed becomes: $36{\times}\frac{5}{18}$

⇒speed=$10\frac{m}{sec}$

Also, time taken by the train is: 25 seconds

Therefore, using formula: $speed=\frac{Distance}{time}$

⇒$Distance=speed{\times}time$

⇒$Distance=10{\times}25$

⇒$Distance=250m$