Final answer:
After heating and rolling a full-base curl, the correct placement for it is near the top of the head. This positioning provides optimal lift and volume, contributing to the hairstyle's shape and fullness.
Step-by-step explanation:
When styling hair, after heating and rolling a full-base curl, it is important to place it correctly to achieve the desired volume and support. The correct placement of a full-base curl after heating and rolling it is usually near the top of the head. This positioning allows for maximum lift and volume at the roots, as the curling process changes the hair's structure temporarily until it cools and sets.
Creating an inclined plane as described, for example, with a ruler resting on a stack of books and placing a paper cup on the other end, is a way to observe gravitational forces and mechanical advantage in a physics context, but in hairstyling, the positioning is about achieving the right look.
For a full-base curl, you generally want the curl to be secured near the scalp, which supports the curl and ensures that the hair has body and fullness. By selecting placement near the top, you are ensuring the full-base curl contributes to the overall shape and style of the hair.