**Independence of perpendicular motions:**

Two items dropped at the same time will hit the ground at the SAME time, even if one of the items was moved a little to the side in the drop, as the horizontal vector component doesn’t change the vertical one.

This means that the 1D kinematic equations still work, but for x and y independently, but time stays the same.

**Orthogonality:**

When something is 90 degrees off each other then they don’t change each other.

**Projectile Motion:**

If we throw something, then it will fall like a parabola (without air resistance)

REAL LIFE:

Dense objects in moderate/low speed are pretty close to the w/o air resistance.

(high speed = 100 m/s, so it should be under that)

**Trajectory:** The path that the projectile goes through.

**Time of Flight:**

This is the time it takes for an object to be shot from somewhere and then land in the same vertical position/elevation.

Like a very small canon.

**Max Height:**

**Range:**

The horizontal distance traveled, and the elevation has to be the SAME.