Students often encounter some difficulties with work and potential energy using the approaches given in most introductory physics texts. For instance, one difficulty that occurs is associated with the question “What is the work done in lifting a book (of mass m) from the floor onto a table through a vertical distance h?”

This content is only available via PDF.
AAPT members receive access to The Physics Teacher and the American Journal of Physics as a member benefit. To learn more about this member benefit and becoming an AAPT member, visit the Joining AAPT page.