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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

By Cora

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.​

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(a) water
Vegetables and fruits help
us to stay _____
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(b) awake

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4. x – 1,8 are in arithmetic progression,
than the value of x is​

1 thought on “3. A train runs from New Delhi to Kolkata. It first covers a distance of 400 km in 7 hours and then<br />a distance of 550 km in 8”

  1. 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

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