1.

A car travels half the distance with constant velocity of 40 kmph and the remaining half with a constant velocity 60 kmph. The average velocity of the car in kmph is(a) 40 (b) 45 (c) 48 (d) 50

Answer»

Correct answer is (C) 48

Average velocity = Vav = \(\cfrac{s}{\frac{s}{80}+{\frac{s}{120}}}\) = 48 kmph.



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