Chapter 3    Kinematics in two dimensions

Displacement, Velocity and Acceleration vectors

Projectile motion:

                            Recognize that x and y motions occur independently of each other.

                            Apply  the equations of kinematics to the x and y motions

                            x - motion takes place at constant velocity- no acceleration

                            y- motion takes place with a constant acceleration of  -9.8 m/s²

                            x-motion:      x = v_ox t ; v_x  is the same all through its flight

                            y-motion:      v_y = v_oy + a_y t;   y = v_oyt + a_yt²/2;  v_y² = v_oy² + 2a_yy

                            Finding the range and time of flight