Question

a vehicle increase its speed from 20m/s to 30m/s in 10 second​

Answer 1

Answer:

Given u=20km/hr=

9

50

m/s , v=3km/hr=

9

75

m/s

Using v=u+at ⇒

9

75

=

9

25

+a×10

⇒a=

18

5

=0.2778 m/s

2

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Answer 2

Hey there ,

Answer is in the attachment .