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A bus decelerating with 4m/s2 changes its speed from 60 m s-1 to a certain value in 5 s. The final speed is:​
  • a)
    40 m/s
  • b)
    25 m/s
  • c)
    60 m/s
  • d)
    30 m/s
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A bus decelerating with 4m/s2changes its speed from 60 m s-1to a certa...
Acceleration = – 4m/s2; Initial speed, u = 60 m s-1
Time taken = 5s
Acceleration = change in velocity per unit time
a=v-u/t
v= u + at
v = 60 – 4 x 5 = 40 m/s
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Most Upvoted Answer
A bus decelerating with 4m/s2changes its speed from 60 m s-1to a certa...
v=u+ at =60+(-4)5 = 60-20 =40m/ s
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