average velocity of a car when it travel at a velocity of 60km /hr during first half of it's running time and 50km/hr during other half is
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v(average)= total displacement/ total time
hence ,
total displacement= 60×t+50×t
total time= t+t= 2 t
=> v(average)= 55Km/h
hence ,
total displacement= 60×t+50×t
total time= t+t= 2 t
=> v(average)= 55Km/h
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