
What is velocity? (article) | Khan Academy
You know that a large displacement in a small amount of time means a large velocity and that velocity has units of distance divided by time, such as miles per hour or kilometers per hour.
The kinematic equations (article) | Khan Academy
Learn what the kinematic equations are and how you can use them to analyze scenarios involving constant acceleration.
Calculating average velocity or speed - Khan Academy
Although speed and velocity are often words used interchangeably, in physics, they are distinct concepts. Velocity (v) is a vector quantity that measures displacement (or change in position, …
Instantaneous speed and velocity (video) | Khan Academy
Learn how to find an object’s instantaneous speed or velocity in three ways - by using calculus, by looking at the slope of a given point on a graph of an object’s rate vs. time, or by using …
Deriving 3 equations of motion (from v-t graph) - Khan Academy
Let's derive the three equations of motion using a velocity time graph v = u + at s = ut + 1/2 at^2 v^2 = u^2+2as.
Displacement from time and velocity example - Khan Academy
Worked example of calculating displacement from time and velocity. Learn how velocity, time, and direction factor into calculating displacement. Understand the importance of unit conversion in …
Newton's second law review (article) | Khan Academy
Review the key concepts, equations, and skills for Newton's second law of motion, including how to analyze motion in the x- and y-directions independently.
Solving for time (video) | Khan Academy
Let's work through another few scenarios involving displacement, velocity, and time, or distance, rate, and time. So over here we have, Ben is running at a constant velocity of three 3 meters …
Velocity vs. time graphs (article) | Khan Academy
Learn how to interpret the motion of an object represented on a velocity vs. time graph.
Uniform circular motion and centripetal acceleration review
Review the key concepts, equations, and skills for uniform circular motion, including centripetal acceleration and the difference between linear and angular velocity.