Question

A train 260m long is running at the speed of 45 km/h. What time will it take to cross a pole of
140 m long bridge
​

Answer 1

Step-by-step explanation:

Formula for converting from km/hr to m/s :

Xkm/hr = X×518m/s

Therefore , Speed = 45×518m/sec = 252m/sec

Total distance to be covered = (360+140)m = 500m

Formula for finding Time = Distance Speed

∴Required time = (500×225)sec = 40sec.

HOP IT HELPS❤❤

PLEASE FOLLOW ME IF U LIKED MY ANSWER ❤❤

Answer 2

Answer:

total distance = length of both which is 260+140(bridge length) = 400 m

speed = 45km/h convert it into m/s

45×1000/(60×60)= 12.5m/s

so time is Distance/ speed

400/12.5= 32sec