Answer:
[tex]a=-2.5 \ m/s^2.[/tex]
Explanation:
It is given that.
Initial velocity, [tex]v_i=-10\ m/s[/tex].
Final velocity, [tex]v_f=-15 \ m/s[/tex].
Also, time taken during the process, [tex]t=2.0 \ s[/tex].
So, average acceleration, a is given by:
[tex]a=\dfrac{v_f-v_i}{t}[/tex]
Putting all the given values in above equation.
[tex]a=\dfrac{-15-(-10)}{2} \ m/s^2=-2.5 \ m/s^2.[/tex]
Hence, it is the required solution.
