Question

A book is sitting in a table. Jackie is pushing the book with a force of 9 N. If the force of friction is 4 N to the left, what is the net force

Answer 1

Answer:

The net force is 5N

Explanation:

A shown in the diagram,

we let P be the force Jackie applied and

$F_r$

be the frictional force.

To get the net force, we subtract the frictional force from the applied force.

This implies that,

$F_n= P-F_r$

$F_n= 9 - 4$

$F_n=5N$