Projectile Motion

I was playing tennis with my dad and remembered I had to do a blog on projectile motion. Projectile motion is again when an object is thrown or shot or bounced or put in the air and it moves along a curved path like a parabola. That path of motion is called the trajectory. Depending on how far and how fast something is moving in the air will determine how curved the line is. When you serve a tennis ball it goes in a parabola motion. It goes fairly straight motion because it is moving quickly but it is still moving like a parabola. All projectiles we are using are only being calculated with the affect of gravity.