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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
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5 votes
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

User Rrttrr
by
6.3k points

1 Answer

5 votes
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!
User Madflow
by
5.3k points
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