Answer:
[tex]-23.8\frac{m}{s^{2}} [/tex]
Explanation:
Average acceleration is defined as the change on velocity on an interval of time:
[tex]a_{avg}=\frac{V_f-V_i}{t} [/tex]
with Vf the final velocity, Vi the initial velocity and t the time interval. Note that the initial velocity is positive because is in the positive x direction and final velocity is negative because is in the opposite direction, so:
[tex]a_{avg}=\frac{-95\frac{m}{s}-43\frac{m}{s}}{5.8s} [/tex]
[tex]a_{avg}=-23.8\frac{m}{s^{2}} [/tex]
The negative sign indicates that the acceleration is in the negative x direction.
