First slide

Rectilinear Motion

Question

A particle travels first half of the total time with speed 20m/s and second half time with speed 30m/s. Find the average speed (in m/s) during complete journey.

Easy

Solution

$V_{a v g} = \frac{V_{1} + V_{2}}{2} = \frac{20 + 30}{2} = 25 m / s$

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