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A truck driver travels three fourth …

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A truck driver travels three fourth of the distance of his run at constant velocity (v) and then travels the remaining distance at velocity of (v/2) find average speed

    • Posted by Khushi Gatwar 5 years, 2 months ago

    CBSE > Class 11 > Physics
    • 1 answers

    Dhruv Sarkar 6 years, 6 months ago

    Let the total distance be 's'. Now, We know, speed =distance/time Hence, time taken to cover 3/4th distance=(3s/4) ×(1/v)= 3s/4v Also, time taken to cover remaining distance=(s/4)×1/v=s/4v Now, average speed = total distance/total time i.e. s/(3s+s)/4v=. 4v/3 Hence the average speed is 4v/3

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