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  • 03-02-2017
  • Chemistry
Answered

ill upvote please help



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 3 options:


-2.7 m/s



2.7 m/s2



-2.7 m/s2



2.7 m/s

Verified Answer :

Anonymous Anonymous
  • 11-02-2017

We know, acceleration = change in velocity / time
a = 9.6 - 12 / 0.9
a = -2.4 / 0.9
a = -2.67

In short, Your Answer would be Option C

Hope this helps!

Answer Link

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