Question

A train of length 145m long passes a telegraph post in 6 seconds. find the speed of the train in km/h.

Answer 1

Answer:

145/6*3600/1000=87km/h

Answer 2

Answer:

87 km/hr

Explanation:

Train Length : 145 m

Train Pass : 6 sec

Speed : Distance / time = 145 / 6 = 24.16 m/s

Speed km/h change : 24.16 * 18 / 5 = 48.2*18 = 86.6 = 87 km/hr