Question

What is the acceleration of the object in the graph?

-0.8 m/s^2
1.25 m/s^2
-1.25 m/s^2
-0.4 m/s^2

Answer 1

-0.8 m/s^2

Explanation:

Acceleration is the slope of the velocity curve. Here the velocity decreases from 12 m/s to zero in 15 seconds. So, the slope is ...

(-12 m/s)/(15 s) = -0.8 m/s^2