Friction (Static and Kinetic)

Key Equations

Graphical view of Friction

Example: Dumping a file cabinet What is the size of fs At what angle of inclination would the cabinet begins to slide?

Application of Newton’s Second Law (A more involved example) In the above problem, determine the stopping distance of the car.

Physical Representation

Chapter 6: Motion in a Plane

Position and Velocity in 2-D Displacement Velocity Average velocity Instantaneous velocity

Components of Velocity in 2-D Instantaneous velocity at any point on the curve is along the tangent drawn at that point Average velocity points in the direction of the displacement vector

Components of velocity