You already know how things move. Now you find out why — forces, friction, and the push-back every object gives you whether you notice it or not.
The Path Through Unit 2
You're given two known forces pulling on a ring at fixed angles. Find the third force that holds it perfectly still — then check your work by actually balancing it on the table.
Measure the coefficient of friction for a few different surfaces on an adjustable ramp, then predict — before you test it — the angle where each one starts to slide.
A ramp somewhere on campus has a sliding hazard — a wheelchair ramp, a loading dock, a hallway incline. You diagnose the forces at play and recommend a real fix, backed by your own measurements and calculations.