Motion in a Straight Line


  1. A bus travelling the first one third distance at a speed of 10 km/h, the next one third at 20 km/h and the last one-third at 60 km/h. The average speed of the bus is









  1. View Hint View Answer Discuss in Forum

    Average speed

    Average speed =
    s
    (s/3)/10 + (s/3)/20 + (s/3)/60

    =
    s
    = 18 km/h
    s/18

    Correct Option: C

    Average speed

    Average speed =
    s
    (s/3)/10 + (s/3)/20 + (s/3)/60

    =
    s
    = 18 km/h
    s/18