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Even if you have uniform circular motion with constant speed, you are accelerated. Why? Because your velocity is changing due to change in direction of motion. This acceleration is called centripetal acceleration and is corresponding force is centripetal force.
Let's learn this lesson step by step.
Lesson 1
What is angular displacement?
How different is distance from displacement?
This video is an introduction to the concept of momentum and impulse. Momentum is nothing but the big brother of velocity. You will see a very easy approach for connecting kinematics and dynamics in this video using variety of examples. Impulse is nothing but change in momentum.
Lesson 2
Period and frequency
In this video you will learn the meaning of period and frequency and their relationship in 2 minutes. You need it to learn about every repeating motion.
Lesson 3
Angular speed
This video is for introducing angular speed, number of radians traveled in each second. This is a basic quantity for understanding circular motion and oscillation. Angular speed is sometimes called angular frequency because it has linear relationship with frequency. In this video we will also consider relationship between linear speed and angular speed. It will be done by solving some problems and a summary map.
Lesson 4
centripetal acceleration
All circular motions are accelerated. This acceleration is called centripetal acceleration. In this video you will learn it from the scratch in 11 minutes!!
We also solve some relevant problems to fix it in your brain.
Lesson 5
Centripetal force
This video is considering the centripetal force as a force generating centripetal acceleration. This force is a role and you need to identify the role player in every question. I highly recommend watching the previous video (lesson 4) before you start watching this video.
Lesson 6
Centripetal force in action
This video will consider different problems and cases to use centripetal force in action. We will see the cases like a car moving on a roundabout, a car in a banked road, rotor, car on convex and concave bridge, a cube on turntable and pendulum.
You will learn how to find the force responsible for supplying the centripetal force. We also will consider common mistakes in solving these types of problems.
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