Question

A ball is dropped from the top of a building. The gravitational force is 10 N down, and the force of air resistance is 1 N up. What is the net force?

9 Nup
9 N down
11 Nup
11 N down

Answer 1

9N down

Step-by-step 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.