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Totaltime (t)MPLE 1.4: New Delhi-Howrah Raidhani Express starts from New Delhi station at zas pind the1hNew Delhi-Howrah Rajdhani Express starts from New Delhi station at 4:45 pm andes Howrah at 9:45 am next day. If the distance of Howrah from New Delhi is 1445 km, find thege speed of train in km h-1. What is its value in m s ?TION: Total distance covered by the train,

Answer»

Total distance travelled by train = 1445 km

Journey begins at 4:45 PM and train reaches its destination at 9:45 AM on the next day.

Time of travel on Day 1 = (12:00-4:45) = 7 h 15 min

Time of travel on Day 2 = 9 h 45 min

Total time taken = 7h 15 min + 9 h 45 min = 17 h

Speed = Distance/Time =1445/17 = Speed = 85 km/h Ans.

to convert speed in m/s we need to multiply by 18/5.

Speed in m/s = 85*18/5 = 306 m/s Ans.



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