Forces vs Energy... (Afternoon ET 08-09 saga - part 2)

This is the second video from my E1 Afternoon ET 08-09 saga. The group is making agreements on how to make the ET for a bowling ball being lowered at a constant speed. This video is tightly related to the first part of the saga Conceptual understanding vs Equations (Afternoon ET 08-09 saga - part 1).

During E1 they have been talking about forces for more than one day. In this video we observe Cindy making an analogy to try to understand how to represent the opposition exerted by the hand while lowering the ball at a constant speed.

[00:00:00.00] Cindy: If I am pushing against her, all right?
So, I am pushing against her and, but you- you're, you are resisting to the point- You are resisting to the point that I can't move you.
[00:00:10.24] Cindy: Amm, is this kinetic energy?
{different voices from the group saying no}
Trevor: There's no movement
Rob: Weren't you saying (to Barbara), weren't you talking about-
Cindy: () is not moving.
Barbara: So, can I ask a question?
[00:00:17.28] Cindy: So, I am lowering a bowling ball gradually (gestures of the ball being hold by something)
Maggie: -at a constant
Cindy: -at a constant... Do I have an opposite kinetic energy -I am, I am just trying to throw this out there.
[00:00:31.14] Cindy: I don't know what's correct and what is incorrect but, could part of that chemical energy be converted into kinetic energy as well in -in the arm system?
[00:00:44.04] Rob: I was trying - I was having a hard time of exp- verbalizing that, you know? Exactly what you are saying with you resisting so the energy -kinetic energy is going downward and you are pushing back with a _force_ in the opposite direction. But the force is not the same as energy
[00:00:59.19] {different voices of the group agreeing}
Rob: And I... So the energy lose, I am not- So, you know? There is no kinetic (noise) slowing down the kinetic energy. (noise) in the opposite direction.

 Rob mentions he had problems trying to verbalize that, he might refer to the discussion presented on the first part of the saga. In this episode we observe how they realize forces and energy are different, they consider that when a force is applied in the scenario they should represent it somehow in terms of energy. They constantly talk that they are different, but still can't explain the energy story involved in the scenario given with certainty.
[Next episode of the saga: Using ET as a reconciliation tool... (Afternoon ET 08-09 saga - part 3)]