Answer:
[tex]\boxed{\text{150 N}}[/tex]
Explanation:
F = ma
Data:
m = 75 kg
a = 2.0 m/s²
Calculation:
[tex]\begin{array}{rcl}F & = & \text{75 kg }\times \text{2.0 m $\cdot$ s$^{-2}$}\\& = & \textbf{150 N}\\\end{array}\\\text{The net force needed is }\boxed{\textbf{150 N}}[/tex]