Physics, asked by sumellikanrk, 18 days ago

On 120 km track, a train travel the first 30 km at a uniform speed of 30 km/per hour .
How fast must the train travel the next 90 km.so as to average 60 km/hr for the entire trip?

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Answered by chandandeepsingh850

0

sorry bro This question I don't know

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