Question

what is the time taken by a 180m long train at 54km/h to cross a man standing on a platform?

Answer 1

solution

speed of train =54kmph=54 [5/18]=15m/sec

Distance =length of th train =180m

time =distance /speed =180/15=12 seconds

hope it helped u

Answer 2

hii friend

here your answer looking for

so, according to your question

as your question has the distance in the metre and speed in the kilometre per hour so we have to first convert the kilometre per hour into the metre per second.
because metre per second is the SI unit.

v= 54km/h ,or,. (54×5/18)m/sec. =15m/sec

s= 180m

t=?


so, v=s/t

t=s/v

t=180/15

t=12sec


hope it helps u