Projectile Motion in Earth Gravity No Air Friction

1
Projectile Motion in Earth Gravity (No Air
Friction)

• Approach 1 Parametric Equations x(t), y(t)
• Approach 2 Trajectory (path) in x-y Space
• Motion in Terms of Speed and Angle

2
Horizontal
Vertical
Be careful of ,- sign issues.
These are parametric Equations
3
Trajectory in x-y Space
4
Motion in Terms of Speed and Angle
5
Strange Situations
Acceleration in both directions?