Projectile Motion

Big Questions: "What is a projectile?" and "What is the general path of motion? Why?" 

In this lab, we used the Vernier Video Physics app to analyze the projectile motion of a basketball shot into the air. One of my classmates took a video of me shooting a basketball and I used this app  to make a motion map on the video and then it produced X vs. Y charts. The X is the motion in the horizontal direction and the Y is the motion in the vertical direction. A projectile is an object propelled by an external force. The general path of motion of a projectile is a parabolic arc.

For the motion in the X direction:
-Velocity is constant
-Acceleration is always 0
-Never speeds up, slows down or stops
The two equations we derived were:
- Vx=Vxi
-Xf=Vxt+xi

For motion in the Y direction:
-Velocity is changing
-Acceleration is always -10m/s
The two equations we derived were:
-Vy=(-10m/s)t+Viy
-y=1/2(-10m/s)t^+Viyt+yi