NEET · Physics · STD 11 - 2. motion in straight line
A vehicle travels half the distance with speed \(v\) and the remaining distance with speed \(2\,v\).Its average speed is :
- A \(\frac{3 v}{4}\)
- B \(\frac{ v }{3}\)
- C \(\frac{2 v}{3}\)
- D \(\frac{4 v}{3}\)
Answer & Solution
Correct Answer
(D) \(\frac{4 v}{3}\)
Step-by-step Solution
Detailed explanation
\(V_{a v g}=\frac{2 v_1 v_2}{v_1+v_2}=\frac{2(v)(2 v)}{v+2 v}=\frac{4 v^2}{3 v}=\frac{4 v}{3}\)
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