JEE Main Physics question
A train starts from station with uniform acceleration for some distance and then goes with uniform retardation for some more distance to come to rest at station . The distance between stations and is 4 km and the train takes 1/15 h to complete this journey. If accelerations are in km per minute unit, then show that . Find the value of .
Answer: 2
Solution
Total time h min; distance km. Let peak speed (km/min). Since the train starts and ends at rest, displacement \tfrac$12
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