Review of Chapters 1, 2, and 3 Motion diagrams – both physical and pictorial representations Difference between instantaneous and average velocities Meaning of Slope and importance of its sign Read and interpret graphs Velocity from a position versus time graph Position from a velocity versus time graph Acceleration from a velocity versus time graph Velocity from a acceleration versus time graph Difference between component vectors, and components of a vector Adding vectors by its components and their graphical representation Law of cosines

Instantaneous vs. average t s

Position, acceleration from velocity versus time graph

Velocity from Position versus time graph

Velocity from acceleration versus time graph

Magnitude of Velocity (negative, zero, positive) V=0 Positive slope Velocity is positive if slope is positive

Vectors and Coordinate Systems Difference between component vectors and components of a vector Representation of a vector by its components Addition of two vectors and representing them graphically Finding the direction of resultant vector – law of cosines