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NIKHIL GARG Grade: 12
        


A train is targated to run from Delhi to Pune at an average speed of 80 kph but due to repairs of track looses 3 hrs in the first part of the journey. If then accelerates at a rate of 20 kph2 till the speed reaches 100 kph. Its speed is now maintained till the end of the journey. If the train now reaches station in time, find the distance (in km) from when it has started acceleration.  


 

6 years ago

Answers : (1)

AKASH GOYAL AskiitiansExpert-IITD
419 Points
										

Dear Nikhil


These types of problems can be easily solved by graphs. See the attached picture for solution.


All the best.


AKASH GOYAL


AskiitiansExpert-IITD


 


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6 years ago
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