Question:
A vehicle travels half the distance L with speed V1 and the other half with speed V2, then its average speed is
(a) (V1+V2)/2
(b) (2V1+V2)/(V1+V2)
(c) (2V1V2)/(V1+V2)
(d) L(V1+V2)/V1V2
Solution:
The correct answer is c) (2V1V2)/(V1+V2)
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