What Forces Act on a Piano in a Free Body Diagram?

AI Thread Summary
The discussion focuses on identifying the forces acting on a piano in a free body diagram. Key forces include the gravitational force acting on the piano, the normal force from the floor, and the interaction forces between the piano and Chadwick. The net force equation, Fnet = m*a, is referenced to clarify which forces are acting on the piano versus those it exerts on other objects. The consensus suggests that forces 2, 5, 7, and 8 are relevant, highlighting the importance of understanding action-reaction pairs in this context. Overall, the analysis emphasizes the need to accurately identify all forces for a complete understanding of the system.
C.Me.B
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Identify the forces acting on the object of interest. From the list below, select the forces that act on the piano.

1. acceleration of the piano
2. gravitational force acting on the piano (piano's weight)
3. speed of the piano
4. gravitational force acting on Chadwick (Chadwick's weight)
5. force of the floor on the piano (normal force)
6. force of the piano on the floor
7. force of Chadwick on the piano
8. force of the piano pushing on Chadwick
1011758A.jpg

I thought it would be 2, 5, 7, 8 But I might be missing something
I guess you would use Fnet= m*a
 
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is 8 acting ON the piano? or is the piano acting on Chadwick? if it's not a force acting ON the piano then it isn't part of the answer.

but I think you have them all.
 

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