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You are pushing on a heavy door, trying to slide it open. If your friend stands behind you and helps you push, how have the forces changed?
a. The net force applied will increase.
b. The net force will decrease.
c. There will be less friction.
d. The applied force does not change

Respuesta :

A. The net force applied will increase.

This is an example of Newton's second law that says that you will need more force to move an object of a lot of mass. F = m×a;  F=Force= M= Mass×A= Acceleration

Force is defined as the push or pull, or the strength or energy exerted or absorbed. The force is measured in Newton.

The correct answer is:

Option A. the net force applied will increase

In the given example, the heavy door if has to be pushed then the net force applied to it should be increased.

From the second law of Newton, Force is equivalent to the product of mass and acceleration. The increase in the mass will increase in the net force to slide open the door.

Thus, the correct answer is Option A.

To know more about force, refer to the following link:

https://brainly.com/question/4456579