A body covered first half of tha distance with a vel city of 40kim/h and sec half distance with a velocity of 60km/h calculate tha average speed
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Avg speed=2v1v2/v1+v2
=2*40*60/40+60
=4800/100
=48 km/hr
=2*40*60/40+60
=4800/100
=48 km/hr
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