Elle is pushing a box of mass 7.0 kilograms with the force of 25 newtons.  if the force of friction is 2.6 newtons, what is the value of acceleration of the box?

the acceleration of the box is 3.2[m/s^2]

Explanation:

This problem can be solved using the second law of movement, described by Newton. Which says that the sum of forces on a body must be equal to the product of its mass by the acceleration of it if the body is not in static equilibrium. Therefore:

Note: the only force that is opposite to the movement is the friction force, therefore, this force takes the minus sign