Question : A body has speed of V,2V and 3V in first 1/3 of distance 𝑆, seconds 1/3 of 𝑆 and third 1/3 of 𝑆 respectively. Its average speed will be
(A) 𝑉
(B) 2V
(C) \dfrac{18}{11}V
(D) \dfrac{11}{18}V
Answer : option (C)
Solution :
A body has speed of V,2V and 3V in first 1/3 of distance 𝑆, seconds 1/3 of 𝑆 and third 1/3 of 𝑆 respectively. Its average speed will be
with
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