Question

A particle moves along x-axis with speed 3 m/s for the first half distance of a journey and the second half distance with a speed 3 m/s and 2m/s. The average speed in the total journey is (1) 3 ms/ (2) 2.7 m/s (3) 1.5 m/s (4) 2 m/s

Answer 1

this is a little bit confusing but so simple

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