Answer:
9N down
Explanation:
The net force on the ball dropped has a magnitude of 9N and it is directed downward.
Given;
Gravitational force = 10N down
Air resistance = 1N up
Air resistance is an opposite force that acts against a body passing through air. It is a negative force.
Gravitational force is a force acting on a body due to gravitational attraction of the earth.
Net force = Gravitational force down - Air resistance up
= 10N - 1 N
= 9N down
The net force is 9N downward.
