Question

2 fill in the blank 1 point holding a book against a wall choose your answer... choose your answer... sliding friction rolling friction fluid friction static friction

Explanation:

When holding a book against a wall, there is no relative motion between the book and the wall. Static friction acts to prevent the book from sliding down due to gravity. Sliding friction occurs when there is relative sliding motion. Rolling friction is for rolling objects. Fluid friction is between fluids and objects moving through them.

Answer:

Static friction