Classical mechanics: Square well with Bounded particle

[Jozefina Gramatikova]

My question is can we have negative energy in classical mechanics? Also I would need help for finding the velocity in part b)

 

[Jozefina Gramatikova]

Can we have negative TOTAL energy in classical mechanics?

 

[Nugatory]

Can we have negative TOTAL energy in classical mechanics?

Yes, because you can always add or subtract an arbitrary constant from the potential as long as you do it everywhere. The potential energy of an object in the Earth's gravity Is $U=mgh$ - but do I measure the height from sea level or from where I'm standing, or somewhere else?

For the rest of the problem, we're going to ask you to repost this question in the homework forum and using the homework template as the forum rules requires. This thread is closed.