Khan Academy
Khan Academy: Centripetal Acceleration: Centripetal Force/acceleration Intuition
Learn about the direction of the force in cases of circular motion at constant speeds. [10:47]
National Science Foundation
National Science Foundation: Science of the Winter Olympic Games: Shaun White Engineering the Half Pipe
A mechanical engineer explains how the half-pipe is designed to give an Olympic snowboarder maximum air time so he can perform tricks. [5:22]
Khan Academy
Khan Academy: Centripetal Force and Acceleration Intuition
This video shows the direction of the force in cases of circular motion at constant speeds. Several examples of centripetal force in everyday life are given. [10:46]
Khan Academy
Khan Academy: Calculus Proof of Centripetal Acceleration Formula
Watch as Khan Academy completes a calculus proof of the famous Centripetal Acceleration Formula. This video proves that a = v^2/r. [14:21]
Khan Academy
Khan Academy: Optimal Turns at Indianapolis Motor Speedway With Jr Hildebrand
Sal Khan speaks to race car driver JR Hildebrand about the optimal turns at Indianapolis Motor Speedway. [6:24]
Khan Academy
Khan Academy: Space Station Speed in Orbit
Sal Khan looks at the speed necessary for the space station to stay in orbit. [6:35]
Khan Academy
Khan Academy: Yo Yo in Vertical Circle Example
In this video, David from Khan Academy explains how to find the tension in a string that is whirling a yo-yo in a vertical circle. [10:30]
Khan Academy
Khan Academy: Mass Swinging in a Horizontal Circle
In this video, David from Khan Academy explains how to solve for the tension and speed of a mass swinging at an angle in a horizontal circle. [12:38]
Khan Academy
Khan Academy: Loop De Loop Question
Students will be asked to find the minimum speed necessary to complete the loop de loop shown in the video. [3:00]
Khan Academy
Khan Academy: Loop De Loop Answer Part 2
Watch as Sal Khan figures out a car's average speed while completing a loop de loop. [4:47]
Khan Academy
Khan Academy: Loop De Loop Answer Part 1
Watch as Sal Khan figures out the minimum speed at the top of a loop de loop for a car stay on the track. [6:04]
Khan Academy
Khan Academy: Centripetal Force Problem Solving
In this video, David from Khan Academy gives some problem solving strategies for centripetal force problems and explains many common misconceptions people have about centripetal forces. [14:59]
Khan Academy
Khan Academy: Visual Understanding of Centripetal Acceleration Formula
This video gives a visual understanding of how centripetal acceleration relates to velocity and radius. [9:47]
Khan Academy
Khan Academy: Race Cars With Constant Speed Around Curve
Using a racetrack as an example, this video demonstrates when acceleration could involve a change in direction and not speed.
Khan Academy
Khan Academy: Deriving Formula for Centripetal Acceleration From Angular Velocity
Sal Khan explains how to derive the formula for centripetal acceleration in terms of angular velocity using linear speed formula. [5:29]
Khan Academy
Khan Academy: Change in Centripetal Accel From Chg in Linear Velocity & Radius
Sal Khan solves two problems centering on finding the change in centripetal acceleration from the change in linear speed, and an example of finding the change in centripetal acceleration from the change in radius. [4:56]
Khan Academy
Khan Academy: Magnetic Force on a Proton Example (Part 2)
This video builds off of part 1 where the radius of the circle traveled by the proton calculated by using the formula for centripetal acceleration. [10:39]