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asyiad asyiad
  • 25-01-2017
  • Physics
Answered

Find the average acceleration of a northbound subway train that slows from 12 m/s to 9.6 m/s in 0.9 s


Question options:


-2.7 m/s2



2.7 m/s2



2.7 m/s



-2.7 m/s

Verified Answer :

Anonymous Anonymous
  • 28-01-2017

Average acceleration = final - initial / time
a = 9.6 - 12  / 9
a = -2.4 / 9
a = -2.7 m/s²

In short, Your Answer would be Option A

Hope this helps!

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