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If the velocity of a moving car increases from nine m/s to 25 m/s in the span of five seconds, what is the average acceleration during this time period? Responses 7.2 m/s² 0.31 m/s² 3.2 m/s² 5 m/s²
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1 vote
If the velocity of a moving car increases from nine m/s to 25 m/s in the span of five seconds, what is the average acceleration during this time period?

Responses

7.2 m/s²
0.31 m/s²
3.2 m/s²
5 m/s²

User Mortana
by
8.7k points

1 Answer

5 votes
3.2 m/s^2

Using the first formula Vo=Vi+at, you can plug in the velocities and time to solve for acceleration.

25=9+5a
16=5a
a=3.2 m/s^2
User Jmgrosen
by
7.8k points
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