A person is pushing on a heavy door, trying to slide it open, forces change when a friend helps to push the door is the net force applied will increase.
The correct option is B that the net force applied will increase.
<h3>What is Force?</h3>
Strength or energy exerted or brought to bear, cause of motion or change, active power the forces of nature the motivating force in her life. The force is measured in Newton.
In the given example, the heavy door has to be pushed then the net force applied to it should be increased.
From the second law of Newton, Force is like the merchandise of mass and acceleration. The increase within the mass will increase within the net force to slip open the door.
Therefore, The correct option is B the net force applied will increase.
Learn more about the Force here:
brainly.com/question/26115859
