AP® Physics 1: Algebra-Based · Unit 2 · Topic 2.2
Contact and Long-Range Forces
Watch it explained
- How it worksHow does a contact force between two surfaces actually come from electric repulsion of atoms?
- How it worksWalk me through naming every force acting on a book sitting still on a tilted shelf.
- Common mistakeWhy isn't there a forward force on a ball that has already left your hand?
- Going furtherWhat forces survive on a crate once you strip away the ones with no source object?
Check yourself
Your turn1 of 2
A ball is thrown and is now in the air, well after leaving the thrower's hand. Which forces are acting on it (ignoring air resistance)?End of topic.