Pick and copy all the incorrect options for the following question:

Which of the following describes the mechanical energy of a cart at rest at the top of a steep hill?

Options:
- The cart has no mechanical energy.
- The cart's mechanical energy is all kinetic.
- The cart's mechanical energy is all potential.
- The cart's mechanical energy is half potential and half kinetic.



- The cart has no mechanical energy.



- The cart's mechanical energy is all kinetic.





- The cart's mechanical energy is half potential and half kinetic.

