A vehicle runs on a straight road of length L | vedclass

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(C) The total distance is $L$. The vehicle travels the first half distance $(L/2)$ with speed $V_1 = V$ and the second half distance $(L/2)$ with spee

Vedclass · Accepted Answer

$\frac{V}{2}$

Vedclass · Answer

(C) The total distance is $L$. The vehicle travels the first half distance $(L/2)$ with speed $V_1 = V$ and the second half distance $(L/2)$ with speed $V_2 = \frac{V}{3}$.Time taken for the first half,$t_1 = \frac{L/2}{V} = \frac{L}{2V}$.Time taken for the second half,$t_2 = \frac{L/2}{V/3} = \frac{3L}{2V}$.Total time taken,$T = t_1 + t_2 = \frac{L}{2V} + \frac{3L}{2V} = \frac{4L}{2V} = \frac{2L}{V}$.Average speed,$V_{	ext{avg}} = \frac{	ext{Total distance}}{	ext{Total time}} = \frac{L}{2L/V} = \frac{V}{2}$.

$A$ vehicle runs on a straight road of length $L$. It travels half the distance with speed $V$ and the remaining distance with speed $\frac{V}{3}$. Its average speed is

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