Instructional Video
Khan Academy

Khan Academy: 2 D Projectile Motion: Unit Vectors and Engineering Notation

9th - 10th
Explains the use of unit vectors to represent the components of a vector. [7:58]
Instructional Video
Khan Academy

Khan Academy: Two Dimensional Projectile Motion: Unit Vector Notation (Part 2)

9th - 10th
Continues from an earlier video on unit vector notation. Demonstrates that adding the x and y components of two vectors is equivalent to adding the vectors visually using the head-to-tail method. [9:13]
Instructional Video
Khan Academy

Khan Academy: Projectile Motion With Ordered Set Notation

9th - 10th
Solving the second part to the projectile motion problem (with wind gust) using ordered set vector notation. [10:18]
Instructional Video
Khan Academy

Khan Academy: 2 D Projectile Motion: Total Final Velocity for Projectile

9th - 10th
Explains how to calculate the total final velocity for a projectile landing at a different altitude. (There is a mistake near the end where Sal wrote 29.03 m/s when it should be 26.03 m/s, and the final total magnitude should be 26.55...
Instructional Video
Khan Academy

Khan Academy: 2 D Projectile Motion: Total Displacement for Projectile

9th - 10th
Reconstructing the total displacement vector for a projectile. [13:46]
Instructional Video
Khan Academy

Khan Academy: Two Dimensional Projectile Motion: Projectile at an Angle

9th - 10th
Projectile motion problems got you scratching your head? This video walks you through figuring out the horizontal displacement for a projectile launched at an angle. [12:46]
Instructional Video
Khan Academy

Khan Academy: Different Way to Determine Time in Air

9th - 10th
Projectile motion problems still confusing you? This video lecture walks you through an example of a two-dimensional projectile motion problem. The problem shows you another way to determine time in the air given an initial vertical...
Instructional Video
Khan Academy

Khan Academy: Two Dimensional Projectile Motion: Unit Vector Notation

9th - 10th
Learn how to add the components of vectors with this video lecture. Step-by-step solutions to these types of problems are given. [9:53]
Instructional Video
Khan Academy

Khan Academy: Two Dimensional Projectile Motion: Different Elevations

9th - 10th
A more complicated example of two-dimensional projectile motion involving launching and landing at different elevations.
Instructional Video
Khan Academy

Khan Academy: Two Dimensional Projectile Motion: Projectile on an Incline

9th - 10th
The challenging problem of a projectile on an inclined plane is discussed.
Instructional Video
Khan Academy

Khan Academy: Two Dimensional Projectile Motion

11th - 12th
Two-Dimensional motion giving you a headache? Then watch this video lecture to help with visualizing, adding and breaking down vectors in two dimensions. Lecture includes examples and step-by-step problems. [12:53]
Instructional Video
Khan Academy

Khan Academy: Correction to Total Final Velocity for Projectile

9th - 10th
On two-dimensional projectile motion. A followup correction to the "Total Final Velocity for Projectile" video.