1. PROJECTILE MOTION

2. PROJECTILES
Projectile: any object that is launched with an initial velocity and continues to move; affected only by the force of gravity.
Trajectory: the path a projectile follows.
Usually parabolic
Range: horizontal distance covered by a projectile
Height: the maximum vertical distance reached by a projectile

3. PROJECTILES Forces: NONE! Velocity: Constant Acceleration: ZERO!
Motion in the x-direction
Motion in the y-direction
Forces: NONE!
Velocity: Constant
Acceleration: ZERO!
Displacement: object will move equal distances every second.
Forces: GRAVITY!
Velocity: Changes (gets faster going down)
Acceleration: m/s2
Displacement: the object will move more distance each second.

4. HORIZONTALLY LAUNCHED
When a projectile is launched horizontally, all of its initial velocity is in the x-direction.
vx is constant, so the distance in the x-direction is the same every second
vy is increasing due to the force of gravity, so the distance in the y-direction increases every second.

5. PROJECTILES LAUNCHED AT AN ANGLE
At the Top:
vy = 0
ay is constant
(g = m/s2)
vx = only velocity; constant
On the Way Up:
vy decreases
ay is constant
(g = m/s2)
dy decreases each second
On the Way Down:
vy increases
ay is constant
(g = m/s2)
dy increases each second

6. EFFECT OF VARIOUS LAUNCH ANGLES