What Forces Are Not Exerted on a Bathroom Scale?

[Mike Hunt]

Homework Statement

A person is standing on a bathroom scale. Which of the following is not a force exerted on the scale?

A) A contact force due to the floor
B) A contact force due to the person's feet
C) The weight of the person
D) The weight of the scale

The Attempt at a Solution

They are check boxes. I have tried A. I have tried D. I have tried both A and D. None of those answer combinations are right.

 

[PhanthomJay]

Homework Statement

A person is standing on a bathroom scale. Which of the following is not a force exerted on the scale?

A) A contact force due to the floor
B) A contact force due to the person's feet
C) The weight of the person
D) The weight of the scale

The Attempt at a Solution

They are check boxes. I have tried A. I have tried D. I have tried both A and D. None of those answer combinations are right.

Draw a free body diagram of the scale, and examine the forces acting on it. Now see which one(s) do not apply.