A train 200 metres long and travelling at a speed of 60km/h will cross a pole in
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
time=distance/speed
=200/60×5/18
= 200×3/50
=12sec
Answer:
12 sec
Step-by-step explanation:
For answering these types of questions just consider 2–3 points
Firstly to cross the pole train has to cover its whole length
So total distance covered = length of the train
The second point is you have to see the units are the same or not
Here distance is in meter and speed is in km/hr and you have to find time in sec.
So for that make all the units the same.
Speed of train = 60km/hr
= 60*(5/18) simple way of changing km/hr to m/sec
Now the formula
Speed = distance / time
60*(5/18) = 200/time
300/18 = 200/time
time = 200*18/300
time =12 sec
Train will cross pole in 12 sec.