- #1
dawn_pingpong
- 50
- 0
Homework Statement
Hello, I was just thinking about this when going down the escalator today... When one goes down the escalator, one loses potential energy, and work is done by the escalator to bring you down. In a sense, energy is lost from the escalator too (as it does work). Taking that the escalator speed remains constant throughout the ride, where has your gravitational potential energy go to?
Yes, in a sense, when one portion of the escalator moves down (the front exposed part), another part is transported back to the surface through the space underneath the escalator. However, as the front part goes down, the bottom (which is supposedly of equivalent mass etc, as it is a roller) moves upwards, which should perfectly balance itself, which means all of your potential energy were transformed to heat and sound etc? But this really doesn't seem right...