Question

what forces are acting on the soccer ball as it hits the net?
force of the net to the right, gravity down and air resistance up, force of the net and air resistance to the left.
the only force acting on the ball is the net!
gravity down and air resistance up, force of the net and air resistance to the left.
all of the above are correct.

Explanation:

Step1: Analyze the forces on the soccer ball

When the soccer ball hits the net, gravity acts downward ($F_g = mg$, where $m$ is mass and $g$ is acceleration due to gravity). Air resistance acts opposite to the motion. If the ball is moving in a certain direction (say forward - related to net - hitting motion), air resistance to the left (opposing the forward - like motion towards the net in a sense) and air resistance (also a form of force opposing motion, could be in other directions relative to the ball's motion path). The net also exerts a force (force of the net) on the ball as it hits the net.

Answer:

All of the above are correct.