Question

a train 180 metre long crosses a standing man in 12 seconds .find the speed of the train in kilometre per hour​

Answer 1

Answer:

54 km/h

Step-by-step explanation:

1) 180m / 12s = 15m/s

If 1 m/s = 3,6 km/h than:

2) 15 × 3,6 = 54 km/h

Answer 2

Answer:

54km/h

Step-by-step explanation:

speed=Distance/time

s= 180 metre/12 secs

s= 15m/s

On conversion of m/s to km/h

i.e by multiplying 15m/s to 18/5

=> 15×18/5

=> 54km/h

hope it helps...