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After traveling for 6.0 seconds, a runner reaches a speed of 12 m/s after starting from rest. What is the runner’s acceleration?A. .5 m/s2B. 6 m/s2C. 72 m/s2D. 2 m/s2

Sagot :

We can find the acceleration as follows:

[tex]\begin{gathered} a=\frac{\Delta v}{\Delta t} \\ so: \\ a=\frac{12-0}{6-0} \\ a=\frac{12}{6} \\ a=2m/s^2 \end{gathered}[/tex]

Answer:

D. 2 m/s^2