Introduction to Centripetal Acceleration - Period, Frequency, & Linear Speed - Physics Problems

This physics video tutorial explains the concept of centripetal acceleration which is present whenever an object moves at constant speed in a circle - this is known as uniform circular motion. The centripetal acceleration vector always points toward the center of the circle. This tutorial also explains how to calculate the period, frequency, and velocity which can be used to calculate the radial acceleration.
Centripetal Acceleration: • Introduction to Centri...
What Is a Centripetal Force?
• Physics - What Is a Ce...
Centripetal Force Physics Problems:
• Centripetal Force Phys...
Tetherball Physics Problems:
• Tetherball Physics Pro...
Tension Force - Vertical Circle:
• Uniform Circular Motio...
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Static Friction & Centripetal Force:
• Static Friction, Centr...
Normal Force on a Hill:
• Normal Force on a Hill...
Banked Turn Physics Problems:
• Banked turn Physics Pr...
Non-Uniform Circular Motion:
• Non-Uniform Circular M...
Gravitational Force:
• Gravity, Universal Gra...
______________________________
Universal Law of Gravitation:
• Gravity and the Univer...
Gravitational Acceleration:
• Gravitational Accelera...
Gravitational Field Strength:
• Gravitational Field St...
Satellite Speed:
• Speed of a Satellite i...
Kepler's Third Law of Motion:
• Kepler's Third Law of ...
Circular Motion Review:
• Centripetal Accelerati...
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Kinetic Energy and Potential Energy:
• Kinetic Energy and Pot...
Work, Energy, and Power:
• Work, Energy, and Powe...
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[@TheOrganicChemistryTutor]

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[@Shiolu_Ella]

I usually don't comment, but I really appreciate this video . I never thought I'd understand centrepetal acceleration. Keep up the good work.

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[@Wicho2x]

a jet traveling 294 m/s makes turn with a radius of 5,607 m what is the planes acceleration

[@Electric-Wind-Hook-Fist]

@@Wicho2x Well,
The formula for centripetal acceleration is ac=v2/r
so (294)2/5,607m = 15.4m/s2.

[@Wicho2x]

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Why is it that I understand these concepts extremely well while watching these videos, but can't understand it at all when taking tests and exams? I pause the video and solve for the questions and get the same answers once you work through the work, but when I take an actual physics test or exam, it's like there is some new step or variable included and the answer I get comes out wrong.

[@mollerbt]

I want to suggest that you have the same problem that I have. Perhaps you are memorizing, but not developing an in depth understanding of how everything is related to each other. Yes you can solve the equations once you see it solved here. Yes you understand how to manipulate the equations in a way that you have seen manipulated, but when a different perspective is given, you dont yet have the understanding needed to manipulate and solve. I can memorize. But the deeper understanding is where I struggle which is why memorizing type classes are easy, but deeper understanding classes like math, trig, physics, chem, so on, are always very difficult for me. But maybe im wrong about you, but with me, this is surely my problem.

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I am very impressed with your jet. 17:10

[@gooddeedsleadto7499]

Acceleration is change in velocity and a resultant vector pointing radially to the center between the preceding and the proceeding velocities for some object moving with uniform velocity in a circle.
This is called centripetal acceleration and as a result exerted as force radially inward tension in a string, radially inward gravitational pull or a friction on the road.

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Was listening to my professor explain this and I couldn’t understand. I had to replay what he said a few time, but literally in the first few minutes of watching this it was clear as day:,)

[@olivierbertier5299]

Very nice video, all of them btw! Just a remark on 3:00. The centripetal acceleration is not inversely correlated with the radius right? A=v^2/R , but v is also function of R. When we replace v by omega*R then we get a=omega sq*R…The centripetal acceleration is proportional to the radius. Also, if we take for example a CD disk, the closer you get to the center the acceleration is going down since your tangential speeds is going down..and ultimately the centripetal acceleration is 0 in the center of the disk. If it would be inversely correlated the centripetal acceleration would go to infinite and the further you are from the center eventually the acceleration would go to zero which is not true. Omega is constant and your tangential speed goes up dramatically and also is your centrupetal acceleration. Let’s find out together !

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[@jhonrydc110]

This is so helpful

[@kowayinox195]

1:20 was the moment that it hit me. Why constant speed in circular motion has acceleration? Cuz change in direction also implies to acceleration! (the direction of the moving object keeps changing, thus acceleration occurs!) Acceleration = change in velocity over time.

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[@Wicho2x]

a jet traveling 294 m/s makes turn with a radius of 5,607 m what is the planes acceleration

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@@Wicho2x 15 415.73

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[@pia9445]

first of all, thank you for this tutorial. it really helped me understand our topic but help please help me with this one 😭 i forgot how to do this.
okay how to reverse the formula of Centripetal acceleration if the acceleration and velocity of the object are given and the radius is missing?

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[@fi0re100]

For question 2 I used V= WR

[@jonathanjoaquin6122]

Hi i just noticed from your 2nd question, isnt it that frequency must be expressed in rad/sec not rev/sec so that the 3rev per ssec must be 6pi/sec

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[@aubreyarguelles6545]

What is the difference of tangen speed, angular speed and linear speed? I often have problems in understanding their meanings and have a hard time comparing them.

[@reemabansal9594]

linear is the ideal speed that is expected that is if an object is going through a circle sticking to the circle (although it isn't like that) it will be linear. linear is mostly used in 1d motion
tangent is how an object rly goes around a circle that is it goes through the tangents
angular is the speed that is applied towards the center

[@greenash3719]

Thanks!

[@JosueA_455]

The arc radius in the circular turn to lead to the earth is caused by the gravitation force as well?

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1:04 this shocked me

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[@ebunoluwasalako6862]

why is the acceleration of the object moving in a circle pointing towards the middle?

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average oct comment:
Wow it’s only been 1 Planck instant but I’ve already learned more than 10.6 billion years of school!

[@zozo709]

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6:07 frequency is one "cycle" over time

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13:15 radius is drawn wrong. it should extend to the center of the sun, not its surface. i suppose the math works with the quantities given, but in no way does your answer reflect reality accurately.

[@isheamongus811]

7:26 - I still why os the formula true.

[@horaciocastillodelrio5967]

Magic

[@frankenstein3397]

can anyone tell me why we use v^2 in formula???

[@frankenstein3397]

i mean does it have any significance

[@radicalsaled5756]

@@frankenstein3397 Hi don't know if your still confused but (m/s)^2 = meters^2/seconds^2 dividing by distance gives you m/s^2 acceleration units

[@Wicho2x]

A jet traveling at 294 m/s makes a turn with a radius of 5,607 m. What is the planes acceleration. Round answer to one decimal place. cmon guys I need help answer

[@bittersweetrain1740]

Use equation a=v^2/r
V=294
R=5607
A=294^2/5607
A=15.5 m/s^2

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7

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It's objecT not objecK

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3:34 This is a stupid question but how do you solve this fraction 😅

[@bittersweetrain1740]

There’s no such thing as a stupid question!
You see the little fraction at the bottom and its denominator of 2? Times the WHOLE fraction by 2
1/(1/2)
1*2/(1*2/2)
2/1
=2

[@meatmissile8229]

Wouldn't 1.5*10^6 multiplied by 1000 just be 1.5*10^9? All you're doing is moving the decimal 3 more places.

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I was also lost here. he made it 1.5 instead of 150

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Human error

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