Rank from largest to smallest. To rank items as equivalent, overlap them.

Question

anonymous · Answer

the force of the 3-kg block on the 2-kg block, F3on2,
the force of the 2-kg block on the 3-kg block, F2on3,
the force of the 2-kg block on the 1-kg block, F2on1,
the force of the 1-kg block on the 2-kg block, F1on2,
the force of the 1-kg block on the floor, F1onfloor, and
the force of the floor on the 1-kg block, Fflooron1.

anonymous · Answer

I think that F1 or floor and Floor on F1 are the largest and have equal forces

anonymous · Answer

@eSpeX Could you help me out?

espex · Answer

I can give it a shot. Show me what your approach thus far has been.

anonymous · Answer

Well I say that force of 1kg on floor and force of floor on 1kg block is the highest because the floor has an equal and opposite reaction to the force of the 1kg box( which also carries the weight of the other 2 boxes ontop).

espex · Answer

The force pushing back from the floor is equal to the force of all the boxes pushing down, otherwise they would float or sink.

anonymous · Answer

so force of Box A is = to force of box B + box C?

anonymous · Answer

The total force acting on the ground is 58.8N
Would the ground be also pushing back with 58.8N?

espex · Answer

Yes, the ground would have to push back with an equal force that is pushed on it.

espex · Answer

Box 'A' is pushing down with $m_a*g$ and box 'B' is pushing back on 'A' with equal force.

anonymous · Answer

So the answer to the question would be that force ground on box C and force box c on ground would be the highest. Numerical value is 58.8N

The next highest would be Box B on box C  and Box C on box B(49.1N)

The lowest value is Box A on B and Box B on A with 29.4N

No negatives because it is magnitude.

espex · Answer

If you are not breaking out the individual force from the overburden of the other boxes.

anonymous · Answer

Answer was correct! Thats alot!

espex · Answer

You're welcome.