Question

a car accelerates uniformly from 18 km\h to 36km\h in 5s . claculate its acceleration?

Answer 1

Answer:

convert km/h to m/s

10-5/5

5/5

1m/s²

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Answer 2

Answer:

change 18km/hr and 36km/hr into m/s

18×5/18. and 36×5/18=10m/s

=5m/s

and time = 5 seconds

now,

a = v-u/t

= 10-5 /5

= 5/5

= 1 m/s²