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Kinematics

A body covers half of the journey at 40km/hr and seconds half at 60 km/hr speed. find the average speed of the whole journey

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$(A)\;50\; km/hr$

$(B)\;48\; km/hr$

$(C)\;45 \;km/hr$

$(D)\;25\;km/hr$

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Kinematics practice questions for JEE

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