Question

A train 225 m long running at a uniform speed of 54 km/h. How much time will it take to pass
(1) A mobile phone tower?
(2) A bridge 105 m long?
(3) A platform 150 m long?​

Answer 1

Answer:

1) when the train passes a tower it means that the distance travelled by it s it's length that is 225m but the speed is in km/h

so we have to convert it in m/s by multiplying it with 5/18

speed=54*5/18=15m/s

time=distance/speed

tume=225/15=15seconds

11)time=(105+225)/15=22 seconds

111) time=(150+225)/15=25seconds