Given that weight of the object, mg= 59 N
Here, m is the mass and g is the acceleration due to gravity.
(a) The net force acting on the object is
[tex]\begin{gathered} F=mg \\ =59\text{ N} \end{gathered}[/tex](b) Given that object encounters air resistance of 23.4 N which acts in opposite direction of free fall.
Thus, the net force will be
[tex]\begin{gathered} F^{\prime}=\text{ mg-air resistance} \\ =59-23.4 \\ =35.6\text{ N} \end{gathered}[/tex](c) Given that air resistance is 59 N.
Thus the net force will be
[tex]\begin{gathered} F^{\doubleprime}=\text{ 59-59} \\ =0\text{ N} \end{gathered}[/tex]Thus, the net forcce is zero in this case.