In order to calculate the required force, let's use the second law of Newton:
[tex]F=m\cdot a[/tex]Where F is the force in Newtons, m is the mass in kg and a is the acceleration in m/s².
So, for m = 302 kg and a = 0.5 m/s², we have:
[tex]\begin{gathered} F=302\cdot0.5 \\ F=151\text{ N} \end{gathered}[/tex]Therefore the required force is 151 N.