In order to calculate her acceleration, we can 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).
If the mass is 120 kg and the force is 50 N, we have:
[tex]\begin{gathered} 50=120\cdot a\\ \\ a=\frac{50}{120}\\ \\ a=\frac{5}{12}\text{ m/s^^b2} \end{gathered}[/tex]Therefore the acceleration is 5/12 m/s².
