Two blocks are stacked on top of each other on thefloor of an elevator. For each of the following situations, selectthe correct relationship between the magnitudes of the two forcesgiven.

You will be asked two questions about each of threesituations. Each situation is described above the first in the pairof questions. Do not assume anything about a given situation exceptfor what is given in the description for that particularsituation.

In each ofthe following questions, the answer is one of thefollowing:
greaterthan, equal to, less than, or unknown compared to.
Firstsituation
The elevator is moving downward ata constant speed.
1. The force of the bottomblock on the top block is theforce of the earth on the top block.
2. The force of the bottom block on topblock is the force of the topblock on bottom block.
Secondsituation
The elevator is moving downward atan increasing speed.
1. The force ofthe bottom block on the top block is the force of the earth on the top block.
2. The force ofthe bottom block on the top block is the force of the top block on the bottom block.
Thirdsituation
The elevator is moving upward.
1. The force of the bottom block on thetop block is the force of theearth on the top block.
2. The force of the bottom block on thetop block is the force of thetop block on the bottom block.