What is the speed of the train whose length is 210 metres? i. the train crosses another train (howrah express/12869) of 300 metres length running in opposite direction in 10 seconds. ii. the train crosses another train (howrah express/12869) running in the same direction at the speed of 60 km/hr in 30 seconds?
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1) -9m/s or 51m/s I am not sure
2)43m/s this is correct for second question
2)43m/s this is correct for second question
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