How do you determine the net force of an
object?

You determine the net force of an object by adding up all of the individual forces.

Explanation:

If N is the number of forces acting on the body, the net force formula is:

= + + ....+

Where , , and as forces acting on a body.

When a body is at rest, the net force formula is given by

Fa = Applied force and

Fg = Gravitational force.

Example:

A truck is standing still and a force of 70 N is applied on it. If the frictional force is 20 N, then what will be the net force?

Solution:

Given

Applied force Fa = 70 N

Frictional force Ff = 20 N

The net force formula is given by

FNet = Fa + Ff

FNet = 70 + (-20)

FNet = 50 N

Therefore, the net force is 50 N