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6 July, 13:38

John traveled East at 10 m/s for ten

seconds. He realized he had gone too

far and made a U-turn. He traveled

West at 5 m/s for six seconds. Calculate

John's displacement.

a. 30 m

b. 70 m

C. 100 m

d. 130 m

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Answers (1)
  1. 6 July, 13:57
    0
    Option D

    130 m

    Explanation:

    From the concept of speed, distance=speed*time

    When traveling East, displacement=10*10=100 m (since he takes 10 seconds while traveling at a speed of 10 m/s)

    When traveling West, displacement=5*6=30 m (since John takes 6 seconds to travel at a speed of 5 m/s)

    Total displacement=Displacement East + Displacement West=100+30=130 m
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