- #1
deda
- 185
- 0
I have very sharp sense. I can smell fishy logic miles away. Ok. I’m dropping 1 ton from 1 km above the surface of the earth. I presume all along the way until the ton hits the ground the ton and the Earth are subjected to equal and opposite forces. Ignore the resistance from the air. I choose to view the process from the impact point. Since the Earth is much heavier than the ton it will accelerate less and therefore pass smaller distance than the ton in the same time between the start and the impact. The system is isolated so the energy must be preserved meaning the work done by both must cancel. The work is defined like this: [tex] W = \int_{x_1}^{x_2} Fdx [/tex] and since the ton is not scared of falling it is not wasting additional energy on screaming. So we have equal forces and different distances in the equation for the work done by the two.
What is wrong here?
Why the work of the two doesn’t cancel?
What is wrong here?
Why the work of the two doesn’t cancel?