Question

A train starts from a station and stops in the next station in 4 min.

The distance is 2 km between two stations. If the train goes the

first part of the journey with a uniform acceleration a1 and the

second part with a retardation a2 then show that 1/a1+1/a2=4
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Answer 1

Answer:

The distance between the station P and Q is 4km and the train takes 4mins to complete journey, then 1/A1 + 1/A2 = ? Motion.