Hi there!
[tex]\large\boxed{a = 6 m/s^{2}}[/tex]
Use the kinematic equation to solve for acceleration:
[tex]a = \frac{v_{f}-v_{i}}{t}[/tex]
Where:
vf = final velocity
vi = initial velocity
t = time
Plug in the given values:
[tex]a = \frac{65-35}{5}\\\\a = 30 / 5 \\\\=6 m/s^{2}[/tex]