3. A train runs from New Delhi to Kolkata. It first covers a distance of 400 km in 7 hours and then
a distance of 550 km in 8

Question

3. A train runs from New Delhi to Kolkata. It first covers a distance of 400 km in 7 hours and then
a distance of 550 km in 8 hours. Calculate the speed and identify whether the train moves in
uniform or Non-uniform motion.​

in progress 0
Cora 4 months 2021-07-06T16:42:22+00:00 1 Answers 0 views 0

Answers ( )

    0
    2021-07-06T16:43:52+00:00

    Answer:

    speed = 63.33 km/hr   and it is  non uniform   motion

    Explanation:

    given  :     a train complete its journey in two  parts

       

    In Ist      it covers distance  =    400km

                       time taken  =    7hrs

    In IInd    it  covers distance  =  550 km

                         time taken  =   8hrs

     hence ,      avg. speed  =        total distance / total time

                                             =        400 +550/7+8    km/hrs

                                             =      950/15     km/hrs

                                             =      63.33 km/hr

     it is non uniform motion

Leave an answer

Browse

9:3-3+1x3-4:2 = ? ( )