Step-by-step explanation:
1.5 m/s²
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
![a = (f)/(m) \\](https://img.qammunity.org/2021/formulas/mathematics/college/f1nfur3dv1q3xis9z9jehstfpeb6xsi32a.png)
m is the mass
f is the force
From the question we have
![a = (12)/(8) = (3)/(2) \\](https://img.qammunity.org/2021/formulas/chemistry/college/fjuguxifaxm03kis2w44q8b7n8mq87yqb7.png)
We have the final answer as
1.5 m/s²
Hope this helps you